Finding the Fourth Proportional to 2,526,217.77, 3,789,581.72 and 820,289.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,526,217.77 : 3,789,581.72 = 820,289.73 : x
2. Step 2: Convert to fraction form
   2,526,217.77/3,789,581.72 = 820,289.73/x
3. Step 3: Cross multiply
   2,526,217.77x = 3,789,581.72 × 820,289.73
4. Step 4: Simplify right side
   2,526,217.77x = 3,108,554,961,810.29
5. Step 5: Solve for x
   x = 3,108,554,961,810.29/2,526,217.77
6. Step 6: Final answer
   x = 1,230,517.42