Finding the Fourth Proportional to 2,158,677.67, 3,237,451.94 and 641,951.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,677.67 : 3,237,451.94 = 641,951.86 : x
2. Step 2: Convert to fraction form
   2,158,677.67/3,237,451.94 = 641,951.86/x
3. Step 3: Cross multiply
   2,158,677.67x = 3,237,451.94 × 641,951.86
4. Step 4: Simplify right side
   2,158,677.67x = 2,078,288,291,333.85
5. Step 5: Solve for x
   x = 2,078,288,291,333.85/2,158,677.67
6. Step 6: Final answer
   x = 962,759.90