Finding the Fourth Proportional to 2,665,814.31, 3,998,310.80 and 868,693.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,665,814.31 : 3,998,310.80 = 868,693.23 : x
2. Step 2: Convert to fraction form
   2,665,814.31/3,998,310.80 = 868,693.23/x
3. Step 3: Cross multiply
   2,665,814.31x = 3,998,310.80 × 868,693.23
4. Step 4: Simplify right side
   2,665,814.31x = 3,473,305,519,052.42
5. Step 5: Solve for x
   x = 3,473,305,519,052.42/2,665,814.31
6. Step 6: Final answer
   x = 1,302,906.02