Finding the Fourth Proportional to 2,721.56, 3,755.72 and 1,542.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,721.56 : 3,755.72 = 1,542.64 : x
2. Step 2: Convert to fraction form
   2,721.56/3,755.72 = 1,542.64/x
3. Step 3: Cross multiply
   2,721.56x = 3,755.72 × 1,542.64
4. Step 4: Simplify right side
   2,721.56x = 5,793,723.90
5. Step 5: Solve for x
   x = 5,793,723.90/2,721.56
6. Step 6: Final answer
   x = 2,128.82