Finding the Fourth Proportional to 963,002.72, 1,443,645.12 and 457,251.68

Step by Step Solution

1. Step 1: Write the proportion equation
   963,002.72 : 1,443,645.12 = 457,251.68 : x
2. Step 2: Convert to fraction form
   963,002.72/1,443,645.12 = 457,251.68/x
3. Step 3: Cross multiply
   963,002.72x = 1,443,645.12 × 457,251.68
4. Step 4: Simplify right side
   963,002.72x = 660,109,156,443.80
5. Step 5: Solve for x
   x = 660,109,156,443.80/963,002.72
6. Step 6: Final answer
   x = 685,469.67