Finding the Fourth Proportional to 3,959.50, 5,463.57 and 2,280.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,959.50 : 5,463.57 = 2,280.28 : x
2. Step 2: Convert to fraction form
   3,959.50/5,463.57 = 2,280.28/x
3. Step 3: Cross multiply
   3,959.50x = 5,463.57 × 2,280.28
4. Step 4: Simplify right side
   3,959.50x = 12,458,469.40
5. Step 5: Solve for x
   x = 12,458,469.40/3,959.50
6. Step 6: Final answer
   x = 3,146.48