Finding the Fourth Proportional to 2,689.56, 3,711.60 and 1,510.65

Step by Step Solution

1. Step 1: Write the proportion equation
   2,689.56 : 3,711.60 = 1,510.65 : x
2. Step 2: Convert to fraction form
   2,689.56/3,711.60 = 1,510.65/x
3. Step 3: Cross multiply
   2,689.56x = 3,711.60 × 1,510.65
4. Step 4: Simplify right side
   2,689.56x = 5,606,928.54
5. Step 5: Solve for x
   x = 5,606,928.54/2,689.56
6. Step 6: Final answer
   x = 2,084.70