Finding the Fourth Proportional to 2,474.28, 3,414.15 and 1,542.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,474.28 : 3,414.15 = 1,542.78 : x
2. Step 2: Convert to fraction form
   2,474.28/3,414.15 = 1,542.78/x
3. Step 3: Cross multiply
   2,474.28x = 3,414.15 × 1,542.78
4. Step 4: Simplify right side
   2,474.28x = 5,267,282.34
5. Step 5: Solve for x
   x = 5,267,282.34/2,474.28
6. Step 6: Final answer
   x = 2,128.81