Finding the Fourth Proportional to 2,672.88, 3,689.08 and 1,610.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,672.88 : 3,689.08 = 1,610.72 : x
2. Step 2: Convert to fraction form
   2,672.88/3,689.08 = 1,610.72/x
3. Step 3: Cross multiply
   2,672.88x = 3,689.08 × 1,610.72
4. Step 4: Simplify right side
   2,672.88x = 5,942,074.94
5. Step 5: Solve for x
   x = 5,942,074.94/2,672.88
6. Step 6: Final answer
   x = 2,223.10