Finding the Fourth Proportional to 2,661.58, 3,672.93 and 1,542.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,661.58 : 3,672.93 = 1,542.49 : x
2. Step 2: Convert to fraction form
   2,661.58/3,672.93 = 1,542.49/x
3. Step 3: Cross multiply
   2,661.58x = 3,672.93 × 1,542.49
4. Step 4: Simplify right side
   2,661.58x = 5,665,472.89
5. Step 5: Solve for x
   x = 5,665,472.89/2,661.58
6. Step 6: Final answer
   x = 2,128.61