Finding the Fourth Proportional to 1,155,331.50, 1,594,234.82 and 639,003.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,155,331.50 : 1,594,234.82 = 639,003.35 : x
2. Step 2: Convert to fraction form
   1,155,331.50/1,594,234.82 = 639,003.35/x
3. Step 3: Cross multiply
   1,155,331.50x = 1,594,234.82 × 639,003.35
4. Step 4: Simplify right side
   1,155,331.50x = 1,018,721,379,500.46
5. Step 5: Solve for x
   x = 1,018,721,379,500.46/1,155,331.50
6. Step 6: Final answer
   x = 881,756.78