Finding the Fourth Proportional to 2,686.43, 3,707.02 and 1,507.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,686.43 : 3,707.02 = 1,507.25 : x
2. Step 2: Convert to fraction form
   2,686.43/3,707.02 = 1,507.25/x
3. Step 3: Cross multiply
   2,686.43x = 3,707.02 × 1,507.25
4. Step 4: Simplify right side
   2,686.43x = 5,587,405.90
5. Step 5: Solve for x
   x = 5,587,405.90/2,686.43
6. Step 6: Final answer
   x = 2,079.86