Finding the Fourth Proportional to 2,686.41, 3,707.30 and 1,507.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,686.41 : 3,707.30 = 1,507.55 : x
2. Step 2: Convert to fraction form
   2,686.41/3,707.30 = 1,507.55/x
3. Step 3: Cross multiply
   2,686.41x = 3,707.30 × 1,507.55
4. Step 4: Simplify right side
   2,686.41x = 5,588,941.85
5. Step 5: Solve for x
   x = 5,588,941.85/2,686.41
6. Step 6: Final answer
   x = 2,080.45