Finding the Fourth Proportional to 2,686.15, 3,707.32 and 1,507.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,686.15 : 3,707.32 = 1,507.60 : x
2. Step 2: Convert to fraction form
   2,686.15/3,707.32 = 1,507.60/x
3. Step 3: Cross multiply
   2,686.15x = 3,707.32 × 1,507.60
4. Step 4: Simplify right side
   2,686.15x = 5,589,137.10
5. Step 5: Solve for x
   x = 5,589,137.10/2,686.15
6. Step 6: Final answer
   x = 2,080.73