Finding the Fourth Proportional to 726,140.35, 1,002,086.56 and 403,850.59

Step by Step Solution

1. Step 1: Write the proportion equation
   726,140.35 : 1,002,086.56 = 403,850.59 : x
2. Step 2: Convert to fraction form
   726,140.35/1,002,086.56 = 403,850.59/x
3. Step 3: Cross multiply
   726,140.35x = 1,002,086.56 × 403,850.59
4. Step 4: Simplify right side
   726,140.35x = 404,693,248,487.07
5. Step 5: Solve for x
   x = 404,693,248,487.07/726,140.35
6. Step 6: Final answer
   x = 557,320.98