Finding the Fourth Proportional to 2,358.47, 3,538.27 and 1,666.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,358.47 : 3,538.27 = 1,666.47 : x
2. Step 2: Convert to fraction form
   2,358.47/3,538.27 = 1,666.47/x
3. Step 3: Cross multiply
   2,358.47x = 3,538.27 × 1,666.47
4. Step 4: Simplify right side
   2,358.47x = 5,896,426.78
5. Step 5: Solve for x
   x = 5,896,426.78/2,358.47
6. Step 6: Final answer
   x = 2,500.11