To estimate the Net Debt / EBITDA ratio for 2022 based on the S&P methodology, we need to calculate the Net Debt and the EBITDA for the period ending 2022-12-31 (which corresponds to the 2022-01-01 to 2023-01-01 interval).

**1. Calculate Net Debt:**
S&P defines Net Debt as Total Debt minus Cash and Cash Equivalents.
- **Short-term Borrowings (2023-01-01):** 444,100,000 EUR
- **Current Portion of Long-term Borrowings (2023-01-01):** 1,909,300,000 EUR
- **Long-term Borrowings (2023-01-01):** 8,416,700,000 EUR
- **Total Debt** = 444,100,000 + 1,909,300,000 + 8,416,700,000 = 10,770,100,000 EUR

- **Cash and Cash Equivalents (2023-01-01):** 2,155,100,000 EUR
- **Net Debt** = Total Debt - Cash and Cash Equivalents = 10,770,100,000 - 2,155,100,000 = 8,615,000,000 EUR

**2. Calculate EBITDA:**
S&P typically defines EBITDA as Profit From Operating Activities (Operating Income) plus Depreciation, Amortisation, and Impairment.
- **Profit Loss From Operating Activities (2022-01-01 to 2023-01-01):** 1,333,500,000 EUR
- **Depreciation Amortisation And Impairment Loss Reversal Of Impairment Loss Recognised In Profit Or Loss (2022-01-01 to 2023-01-01):** 725,700,000 EUR
- **EBITDA** = 1,333,500,000 + 725,700,000 = 2,059,200,000 EUR

**3. Calculate Net Debt / EBITDA ratio:**
- **Ratio** = Net Debt / EBITDA = 8,615,000,000 / 2,059,200,000 ≈ 4.18367

<answer>4.18</answer>