Finding the Fourth Proportional to 2,661.17, 3,672.13 and 1,542.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,661.17 : 3,672.13 = 1,542.46 : x
2. Step 2: Convert to fraction form
   2,661.17/3,672.13 = 1,542.46/x
3. Step 3: Cross multiply
   2,661.17x = 3,672.13 × 1,542.46
4. Step 4: Simplify right side
   2,661.17x = 5,664,104.46
5. Step 5: Solve for x
   x = 5,664,104.46/2,661.17
6. Step 6: Final answer
   x = 2,128.43