Finding the Fourth Proportional to 3,986.35, 5,498.27 and 2,726.09

Step by Step Solution

1. Step 1: Write the proportion equation
   3,986.35 : 5,498.27 = 2,726.09 : x
2. Step 2: Convert to fraction form
   3,986.35/5,498.27 = 2,726.09/x
3. Step 3: Cross multiply
   3,986.35x = 5,498.27 × 2,726.09
4. Step 4: Simplify right side
   3,986.35x = 14,988,778.86
5. Step 5: Solve for x
   x = 14,988,778.86/3,986.35
6. Step 6: Final answer
   x = 3,760.03