Finding the Fourth Proportional to 726,140.48, 1,002,086.73 and 403,850.71

Step by Step Solution

1. Step 1: Write the proportion equation
   726,140.48 : 1,002,086.73 = 403,850.71 : x
2. Step 2: Convert to fraction form
   726,140.48/1,002,086.73 = 403,850.71/x
3. Step 3: Cross multiply
   726,140.48x = 1,002,086.73 × 403,850.71
4. Step 4: Simplify right side
   726,140.48x = 404,693,438,644.69
5. Step 5: Solve for x
   x = 404,693,438,644.69/726,140.48
6. Step 6: Final answer
   x = 557,321.14