Finding the Fourth Proportional to 2,689.71, 4,019.00 and 2,061.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,689.71 : 4,019.00 = 2,061.57 : x
2. Step 2: Convert to fraction form
   2,689.71/4,019.00 = 2,061.57/x
3. Step 3: Cross multiply
   2,689.71x = 4,019.00 × 2,061.57
4. Step 4: Simplify right side
   2,689.71x = 8,285,439.52
5. Step 5: Solve for x
   x = 8,285,439.52/2,689.71
6. Step 6: Final answer
   x = 3,080.42