Finding the Fourth Proportional to 647,112.88, 892,752.72 and 429,424.22

Step by Step Solution

1. Step 1: Write the proportion equation
   647,112.88 : 892,752.72 = 429,424.22 : x
2. Step 2: Convert to fraction form
   647,112.88/892,752.72 = 429,424.22/x
3. Step 3: Cross multiply
   647,112.88x = 892,752.72 × 429,424.22
4. Step 4: Simplify right side
   647,112.88x = 383,369,640,438.88
5. Step 5: Solve for x
   x = 383,369,640,438.88/647,112.88
6. Step 6: Final answer
   x = 592,430.86