Finding the Fourth Proportional to 2,633.82, 3,950.38 and 686.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,633.82 : 3,950.38 = 686.17 : x
2. Step 2: Convert to fraction form
   2,633.82/3,950.38 = 686.17/x
3. Step 3: Cross multiply
   2,633.82x = 3,950.38 × 686.17
4. Step 4: Simplify right side
   2,633.82x = 2,710,632.24
5. Step 5: Solve for x
   x = 2,710,632.24/2,633.82
6. Step 6: Final answer
   x = 1,029.16