Finding the Fourth Proportional to 2,339.61, 3,227.16 and 1,542.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,339.61 : 3,227.16 = 1,542.71 : x
2. Step 2: Convert to fraction form
   2,339.61/3,227.16 = 1,542.71/x
3. Step 3: Cross multiply
   2,339.61x = 3,227.16 × 1,542.71
4. Step 4: Simplify right side
   2,339.61x = 4,978,548.15
5. Step 5: Solve for x
   x = 4,978,548.15/2,339.61
6. Step 6: Final answer
   x = 2,127.94