Finding the Fourth Proportional to 726,141.23, 1,002,087.77 and 403,851.47

Step by Step Solution

1. Step 1: Write the proportion equation
   726,141.23 : 1,002,087.77 = 403,851.47 : x
2. Step 2: Convert to fraction form
   726,141.23/1,002,087.77 = 403,851.47/x
3. Step 3: Cross multiply
   726,141.23x = 1,002,087.77 × 403,851.47
4. Step 4: Simplify right side
   726,141.23x = 404,694,611,953.83
5. Step 5: Solve for x
   x = 404,694,611,953.83/726,141.23
6. Step 6: Final answer
   x = 557,322.18