Finding the Fourth Proportional to 2,417.82, 3,627.33 and 686.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,417.82 : 3,627.33 = 686.43 : x
2. Step 2: Convert to fraction form
   2,417.82/3,627.33 = 686.43/x
3. Step 3: Cross multiply
   2,417.82x = 3,627.33 × 686.43
4. Step 4: Simplify right side
   2,417.82x = 2,489,908.13
5. Step 5: Solve for x
   x = 2,489,908.13/2,417.82
6. Step 6: Final answer
   x = 1,029.82