Finding the Fourth Proportional to 2,686.09, 3,706.81 and 1,507.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,686.09 : 3,706.81 = 1,507.16 : x
2. Step 2: Convert to fraction form
   2,686.09/3,706.81 = 1,507.16/x
3. Step 3: Cross multiply
   2,686.09x = 3,706.81 × 1,507.16
4. Step 4: Simplify right side
   2,686.09x = 5,586,755.76
5. Step 5: Solve for x
   x = 5,586,755.76/2,686.09
6. Step 6: Final answer
   x = 2,079.88