Finding the Fourth Proportional to 726,142.48, 1,002,089.49 and 403,852.71

Step by Step Solution

1. Step 1: Write the proportion equation
   726,142.48 : 1,002,089.49 = 403,852.71 : x
2. Step 2: Convert to fraction form
   726,142.48/1,002,089.49 = 403,852.71/x
3. Step 3: Cross multiply
   726,142.48x = 1,002,089.49 × 403,852.71
4. Step 4: Simplify right side
   726,142.48x = 404,696,556,199.02
5. Step 5: Solve for x
   x = 404,696,556,199.02/726,142.48
6. Step 6: Final answer
   x = 557,323.90