Finding the Fourth Proportional to 725,061.20, 1,000,583.94 and 402,801.34

Step by Step Solution

1. Step 1: Write the proportion equation
   725,061.20 : 1,000,583.94 = 402,801.34 : x
2. Step 2: Convert to fraction form
   725,061.20/1,000,583.94 = 402,801.34/x
3. Step 3: Cross multiply
   725,061.20x = 1,000,583.94 × 402,801.34
4. Step 4: Simplify right side
   725,061.20x = 403,036,551,814.48
5. Step 5: Solve for x
   x = 403,036,551,814.48/725,061.20
6. Step 6: Final answer
   x = 555,865.56