Finding the Fourth Proportional to 726,763.31, 1,002,933.37 and 404,549.53

Step by Step Solution

1. Step 1: Write the proportion equation
   726,763.31 : 1,002,933.37 = 404,549.53 : x
2. Step 2: Convert to fraction form
   726,763.31/1,002,933.37 = 404,549.53/x
3. Step 3: Cross multiply
   726,763.31x = 1,002,933.37 × 404,549.53
4. Step 4: Simplify right side
   726,763.31x = 405,736,221,453.17
5. Step 5: Solve for x
   x = 405,736,221,453.17/726,763.31
6. Step 6: Final answer
   x = 558,278.35