Finding the Fourth Proportional to 3,608.76, 4,976.79 and 2,280.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,608.76 : 4,976.79 = 2,280.15 : x
2. Step 2: Convert to fraction form
   3,608.76/4,976.79 = 2,280.15/x
3. Step 3: Cross multiply
   3,608.76x = 4,976.79 × 2,280.15
4. Step 4: Simplify right side
   3,608.76x = 11,347,827.72
5. Step 5: Solve for x
   x = 11,347,827.72/3,608.76
6. Step 6: Final answer
   x = 3,144.52