Finding the Fourth Proportional to 2,866.68, 4,297.59 and 917.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,866.68 : 4,297.59 = 917.82 : x
2. Step 2: Convert to fraction form
   2,866.68/4,297.59 = 917.82/x
3. Step 3: Cross multiply
   2,866.68x = 4,297.59 × 917.82
4. Step 4: Simplify right side
   2,866.68x = 3,944,414.05
5. Step 5: Solve for x
   x = 3,944,414.05/2,866.68
6. Step 6: Final answer
   x = 1,375.95