Finding the Fourth Proportional to 1,057,281.27, 1,585,908.15 and 258,569.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,057,281.27 : 1,585,908.15 = 258,569.73 : x
2. Step 2: Convert to fraction form
   1,057,281.27/1,585,908.15 = 258,569.73/x
3. Step 3: Cross multiply
   1,057,281.27x = 1,585,908.15 × 258,569.73
4. Step 4: Simplify right side
   1,057,281.27x = 410,067,842,150.30
5. Step 5: Solve for x
   x = 410,067,842,150.30/1,057,281.27
6. Step 6: Final answer
   x = 387,851.23