Finding the Fourth Proportional to 2,661.33, 3,672.69 and 1,542.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,661.33 : 3,672.69 = 1,542.63 : x
2. Step 2: Convert to fraction form
   2,661.33/3,672.69 = 1,542.63/x
3. Step 3: Cross multiply
   2,661.33x = 3,672.69 × 1,542.63
4. Step 4: Simplify right side
   2,661.33x = 5,665,575.70
5. Step 5: Solve for x
   x = 5,665,575.70/2,661.33
6. Step 6: Final answer
   x = 2,128.86