Finding the Fourth Proportional to 2,686.56, 3,707.43 and 1,507.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,686.56 : 3,707.43 = 1,507.63 : x
2. Step 2: Convert to fraction form
   2,686.56/3,707.43 = 1,507.63/x
3. Step 3: Cross multiply
   2,686.56x = 3,707.43 × 1,507.63
4. Step 4: Simplify right side
   2,686.56x = 5,589,432.69
5. Step 5: Solve for x
   x = 5,589,432.69/2,686.56
6. Step 6: Final answer
   x = 2,080.52