Finding the Fourth Proportional to 2,687.67, 3,709.02 and 1,508.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,687.67 : 3,709.02 = 1,508.72 : x
2. Step 2: Convert to fraction form
   2,687.67/3,709.02 = 1,508.72/x
3. Step 3: Cross multiply
   2,687.67x = 3,709.02 × 1,508.72
4. Step 4: Simplify right side
   2,687.67x = 5,595,854.11
5. Step 5: Solve for x
   x = 5,595,854.11/2,687.67
6. Step 6: Final answer
   x = 2,082.05