Finding the Fourth Proportional to 8,287.17, 12,432.71 and 2,740.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,287.17 : 12,432.71 = 2,740.52 : x
2. Step 2: Convert to fraction form
   8,287.17/12,432.71 = 2,740.52/x
3. Step 3: Cross multiply
   8,287.17x = 12,432.71 × 2,740.52
4. Step 4: Simplify right side
   8,287.17x = 34,072,014.54
5. Step 5: Solve for x
   x = 34,072,014.54/8,287.17
6. Step 6: Final answer
   x = 4,111.42