Finding the Fourth Proportional to 726,715.59, 1,002,914.63 and 404,424.69

Step by Step Solution

1. Step 1: Write the proportion equation
   726,715.59 : 1,002,914.63 = 404,424.69 : x
2. Step 2: Convert to fraction form
   726,715.59/1,002,914.63 = 404,424.69/x
3. Step 3: Cross multiply
   726,715.59x = 1,002,914.63 × 404,424.69
4. Step 4: Simplify right side
   726,715.59x = 405,603,438,334.22
5. Step 5: Solve for x
   x = 405,603,438,334.22/726,715.59
6. Step 6: Final answer
   x = 558,132.29