Finding the Fourth Proportional to 2,658.86, 3,669.72 and 1,540.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,658.86 : 3,669.72 = 1,540.52 : x
2. Step 2: Convert to fraction form
   2,658.86/3,669.72 = 1,540.52/x
3. Step 3: Cross multiply
   2,658.86x = 3,669.72 × 1,540.52
4. Step 4: Simplify right side
   2,658.86x = 5,653,277.05
5. Step 5: Solve for x
   x = 5,653,277.05/2,658.86
6. Step 6: Final answer
   x = 2,126.20