Finding the Fourth Proportional to 1,155,446,911.46, 1,594,516,737.98 and 660,420,248.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,155,446,911.46 : 1,594,516,737.98 = 660,420,248.78 : x
2. Step 2: Convert to fraction form
   1,155,446,911.46/1,594,516,737.98 = 660,420,248.78/x
3. Step 3: Cross multiply
   1,155,446,911.46x = 1,594,516,737.98 × 660,420,248.78
4. Step 4: Simplify right side
   1,155,446,911.46x = 1,053,051,140,780,625,664
5. Step 5: Solve for x
   x = 1,053,051,140,780,625,664/1,155,446,911.46
6. Step 6: Final answer
   x = 911,379,943.41