Finding the Fourth Proportional to 1,287,179, 1,776,391.89 and 743,337.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,287,179 : 1,776,391.89 = 743,337.62 : x
2. Step 2: Convert to fraction form
   1,287,179/1,776,391.89 = 743,337.62/x
3. Step 3: Cross multiply
   1,287,179x = 1,776,391.89 × 743,337.62
4. Step 4: Simplify right side
   1,287,179x = 1,320,458,919,699.90
5. Step 5: Solve for x
   x = 1,320,458,919,699.90/1,287,179
6. Step 6: Final answer
   x = 1,025,854.93