Finding the Fourth Proportional to 2,686.52, 4,028.49 and 837.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,686.52 : 4,028.49 = 837.83 : x
2. Step 2: Convert to fraction form
   2,686.52/4,028.49 = 837.83/x
3. Step 3: Cross multiply
   2,686.52x = 4,028.49 × 837.83
4. Step 4: Simplify right side
   2,686.52x = 3,375,199.85
5. Step 5: Solve for x
   x = 3,375,199.85/2,686.52
6. Step 6: Final answer
   x = 1,256.35