Finding the Fourth Proportional to 2,689, 3,711.06 and 1,510.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,689 : 3,711.06 = 1,510.12 : x
2. Step 2: Convert to fraction form
   2,689/3,711.06 = 1,510.12/x
3. Step 3: Cross multiply
   2,689x = 3,711.06 × 1,510.12
4. Step 4: Simplify right side
   2,689x = 5,604,145.93
5. Step 5: Solve for x
   x = 5,604,145.93/2,689
6. Step 6: Final answer
   x = 2,084.10