Finding the Fourth Proportional to 3,513.52, 4,847.88 and 2,116.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,513.52 : 4,847.88 = 2,116.72 : x
2. Step 2: Convert to fraction form
   3,513.52/4,847.88 = 2,116.72/x
3. Step 3: Cross multiply
   3,513.52x = 4,847.88 × 2,116.72
4. Step 4: Simplify right side
   3,513.52x = 10,261,604.55
5. Step 5: Solve for x
   x = 10,261,604.55/3,513.52
6. Step 6: Final answer
   x = 2,920.61