Finding the Fourth Proportional to 5,127.47, 7,691.27 and 1,429.61

Step by Step Solution

1. Step 1: Write the proportion equation
   5,127.47 : 7,691.27 = 1,429.61 : x
2. Step 2: Convert to fraction form
   5,127.47/7,691.27 = 1,429.61/x
3. Step 3: Cross multiply
   5,127.47x = 7,691.27 × 1,429.61
4. Step 4: Simplify right side
   5,127.47x = 10,995,470.90
5. Step 5: Solve for x
   x = 10,995,470.90/5,127.47
6. Step 6: Final answer
   x = 2,144.43