Finding the Fourth Proportional to 1,155,760.25, 1,733,936.12 and 676,391.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,155,760.25 : 1,733,936.12 = 676,391.72 : x
2. Step 2: Convert to fraction form
   1,155,760.25/1,733,936.12 = 676,391.72/x
3. Step 3: Cross multiply
   1,155,760.25x = 1,733,936.12 × 676,391.72
4. Step 4: Simplify right side
   1,155,760.25x = 1,172,820,025,061.76
5. Step 5: Solve for x
   x = 1,172,820,025,061.76/1,155,760.25
6. Step 6: Final answer
   x = 1,014,760.66