Finding the Fourth Proportional to 2,617.40, 3,925.02 and 1,155.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,617.40 : 3,925.02 = 1,155.50 : x
2. Step 2: Convert to fraction form
   2,617.40/3,925.02 = 1,155.50/x
3. Step 3: Cross multiply
   2,617.40x = 3,925.02 × 1,155.50
4. Step 4: Simplify right side
   2,617.40x = 4,535,360.61
5. Step 5: Solve for x
   x = 4,535,360.61/2,617.40
6. Step 6: Final answer
   x = 1,732.77