Finding the Fourth Proportional to 743,099.31, 1,025,472.56 and 403,564.59

Step by Step Solution

1. Step 1: Write the proportion equation
   743,099.31 : 1,025,472.56 = 403,564.59 : x
2. Step 2: Convert to fraction form
   743,099.31/1,025,472.56 = 403,564.59/x
3. Step 3: Cross multiply
   743,099.31x = 1,025,472.56 × 403,564.59
4. Step 4: Simplify right side
   743,099.31x = 413,844,411,214.83
5. Step 5: Solve for x
   x = 413,844,411,214.83/743,099.31
6. Step 6: Final answer
   x = 556,916.69