Finding the Fourth Proportional to 3,689.67, 5,530.59 and 2,516.77

Step by Step Solution

1. Step 1: Write the proportion equation
   3,689.67 : 5,530.59 = 2,516.77 : x
2. Step 2: Convert to fraction form
   3,689.67/5,530.59 = 2,516.77/x
3. Step 3: Cross multiply
   3,689.67x = 5,530.59 × 2,516.77
4. Step 4: Simplify right side
   3,689.67x = 13,919,229.91
5. Step 5: Solve for x
   x = 13,919,229.91/3,689.67
6. Step 6: Final answer
   x = 3,772.48