Finding the Fourth Proportional to 2,661.55, 3,672.94 and 1,542.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,661.55 : 3,672.94 = 1,542.71 : x
2. Step 2: Convert to fraction form
   2,661.55/3,672.94 = 1,542.71/x
3. Step 3: Cross multiply
   2,661.55x = 3,672.94 × 1,542.71
4. Step 4: Simplify right side
   2,661.55x = 5,666,281.27
5. Step 5: Solve for x
   x = 5,666,281.27/2,661.55
6. Step 6: Final answer
   x = 2,128.94