Finding the Fourth Proportional to 2,661.48, 3,672.28 and 1,542.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,661.48 : 3,672.28 = 1,542.36 : x
2. Step 2: Convert to fraction form
   2,661.48/3,672.28 = 1,542.36/x
3. Step 3: Cross multiply
   2,661.48x = 3,672.28 × 1,542.36
4. Step 4: Simplify right side
   2,661.48x = 5,663,977.78
5. Step 5: Solve for x
   x = 5,663,977.78/2,661.48
6. Step 6: Final answer
   x = 2,128.13