Finding the Fourth Proportional to 2,686.42, 3,707.31 and 1,507.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,686.42 : 3,707.31 = 1,507.42 : x
2. Step 2: Convert to fraction form
   2,686.42/3,707.31 = 1,507.42/x
3. Step 3: Cross multiply
   2,686.42x = 3,707.31 × 1,507.42
4. Step 4: Simplify right side
   2,686.42x = 5,588,473.24
5. Step 5: Solve for x
   x = 5,588,473.24/2,686.42
6. Step 6: Final answer
   x = 2,080.27