Finding the Fourth Proportional to 1,055,854.72, 1,577,982.38 and 772,140.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,055,854.72 : 1,577,982.38 = 772,140.88 : x
2. Step 2: Convert to fraction form
   1,055,854.72/1,577,982.38 = 772,140.88/x
3. Step 3: Cross multiply
   1,055,854.72x = 1,577,982.38 × 772,140.88
4. Step 4: Simplify right side
   1,055,854.72x = 1,218,424,703,517.69
5. Step 5: Solve for x
   x = 1,218,424,703,517.69/1,055,854.72
6. Step 6: Final answer
   x = 1,153,970.03