Finding the Fourth Proportional to 2,154,141.88, 3,231,766.46 and 806,323.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,154,141.88 : 3,231,766.46 = 806,323.75 : x
2. Step 2: Convert to fraction form
   2,154,141.88/3,231,766.46 = 806,323.75/x
3. Step 3: Cross multiply
   2,154,141.88x = 3,231,766.46 × 806,323.75
4. Step 4: Simplify right side
   2,154,141.88x = 2,605,850,051,151.42
5. Step 5: Solve for x
   x = 2,605,850,051,151.42/2,154,141.88
6. Step 6: Final answer
   x = 1,209,692.86