Finding the Fourth Proportional to 1,287,171.69, 1,776,179.48 and 763,792.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,287,171.69 : 1,776,179.48 = 763,792.10 : x
2. Step 2: Convert to fraction form
   1,287,171.69/1,776,179.48 = 763,792.10/x
3. Step 3: Cross multiply
   1,287,171.69x = 1,776,179.48 × 763,792.10
4. Step 4: Simplify right side
   1,287,171.69x = 1,356,631,842,306.25
5. Step 5: Solve for x
   x = 1,356,631,842,306.25/1,287,171.69
6. Step 6: Final answer
   x = 1,053,963.39