Finding the Fourth Proportional to 2,517.61, 3,777.62 and 1,543.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,517.61 : 3,777.62 = 1,543.15 : x
2. Step 2: Convert to fraction form
   2,517.61/3,777.62 = 1,543.15/x
3. Step 3: Cross multiply
   2,517.61x = 3,777.62 × 1,543.15
4. Step 4: Simplify right side
   2,517.61x = 5,829,426.59
5. Step 5: Solve for x
   x = 5,829,426.59/2,517.61
6. Step 6: Final answer
   x = 2,315.46