Finding the Fourth Proportional to 2,689, 3,710.76 and 1,510.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,689 : 3,710.76 = 1,510.10 : x
2. Step 2: Convert to fraction form
   2,689/3,710.76 = 1,510.10/x
3. Step 3: Cross multiply
   2,689x = 3,710.76 × 1,510.10
4. Step 4: Simplify right side
   2,689x = 5,603,618.68
5. Step 5: Solve for x
   x = 5,603,618.68/2,689
6. Step 6: Final answer
   x = 2,083.90