Finding the Fourth Proportional to 726,142.10, 1,002,088.98 and 403,852.34

Step by Step Solution

1. Step 1: Write the proportion equation
   726,142.10 : 1,002,088.98 = 403,852.34 : x
2. Step 2: Convert to fraction form
   726,142.10/1,002,088.98 = 403,852.34/x
3. Step 3: Cross multiply
   726,142.10x = 1,002,088.98 × 403,852.34
4. Step 4: Simplify right side
   726,142.10x = 404,695,977,441.95
5. Step 5: Solve for x
   x = 404,695,977,441.95/726,142.10
6. Step 6: Final answer
   x = 557,323.39