Finding the Fourth Proportional to 726,778.28, 1,002,952.98 and 404,480.69

Step by Step Solution

1. Step 1: Write the proportion equation
   726,778.28 : 1,002,952.98 = 404,480.69 : x
2. Step 2: Convert to fraction form
   726,778.28/1,002,952.98 = 404,480.69/x
3. Step 3: Cross multiply
   726,778.28x = 1,002,952.98 × 404,480.69
4. Step 4: Simplify right side
   726,778.28x = 405,675,113,387.96
5. Step 5: Solve for x
   x = 405,675,113,387.96/726,778.28
6. Step 6: Final answer
   x = 558,182.77