Finding the Fourth Proportional to 2,661.39, 3,673.40 and 1,542.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,661.39 : 3,673.40 = 1,542.96 : x
2. Step 2: Convert to fraction form
   2,661.39/3,673.40 = 1,542.96/x
3. Step 3: Cross multiply
   2,661.39x = 3,673.40 × 1,542.96
4. Step 4: Simplify right side
   2,661.39x = 5,667,901.55
5. Step 5: Solve for x
   x = 5,667,901.55/2,661.39
6. Step 6: Final answer
   x = 2,129.68