Determining a Weighted EBITDA Average

Given that we are halfway through the year, how would you weight 2024 YTD EBITDA if you were trying to determine a weighted EBITDA average? I have been annualizing the 2024 YTD EBITDA figures provided by the Seller and assigning them a weight of 2 on a scale of 1-3, as in the following example. I would really appreciate hearing how others are approaching this.

2021 EBITDA: $1,250,000 (Weight = 1)
2022 EBITDA: $1,500,000 (Weight = 2)
2023 EBITDA: $1,750,000 (Weight =3)
2024 YTD EBITDA: $2,000,000 (Weight = 2)

Avg. EBITDA = $1,687,500