Finding the Fourth Proportional to 2,661.94, 3,672.72 and 1,542.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,661.94 : 3,672.72 = 1,542.88 : x
2. Step 2: Convert to fraction form
   2,661.94/3,672.72 = 1,542.88/x
3. Step 3: Cross multiply
   2,661.94x = 3,672.72 × 1,542.88
4. Step 4: Simplify right side
   2,661.94x = 5,666,566.23
5. Step 5: Solve for x
   x = 5,666,566.23/2,661.94
6. Step 6: Final answer
   x = 2,128.74