Finding the Fourth Proportional to 726,150.20, 1,088,228.83 and 459,433.25

Step by Step Solution

1. Step 1: Write the proportion equation
   726,150.20 : 1,088,228.83 = 459,433.25 : x
2. Step 2: Convert to fraction form
   726,150.20/1,088,228.83 = 459,433.25/x
3. Step 3: Cross multiply
   726,150.20x = 1,088,228.83 × 459,433.25
4. Step 4: Simplify right side
   726,150.20x = 499,968,502,669.45
5. Step 5: Solve for x
   x = 499,968,502,669.45/726,150.20
6. Step 6: Final answer
   x = 688,519.41