Finding the Fourth Proportional to 1,425,411.77, 1,967,068.61 and 780,854.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,425,411.77 : 1,967,068.61 = 780,854.88 : x
2. Step 2: Convert to fraction form
   1,425,411.77/1,967,068.61 = 780,854.88/x
3. Step 3: Cross multiply
   1,425,411.77x = 1,967,068.61 × 780,854.88
4. Step 4: Simplify right side
   1,425,411.77x = 1,535,995,123,413.32
5. Step 5: Solve for x
   x = 1,535,995,123,413.32/1,425,411.77
6. Step 6: Final answer
   x = 1,077,579.94