Finding the Fourth Proportional to 2,185.43, 3,279.48 and 868.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185.43 : 3,279.48 = 868.96 : x
2. Step 2: Convert to fraction form
   2,185.43/3,279.48 = 868.96/x
3. Step 3: Cross multiply
   2,185.43x = 3,279.48 × 868.96
4. Step 4: Simplify right side
   2,185.43x = 2,849,736.94
5. Step 5: Solve for x
   x = 2,849,736.94/2,185.43
6. Step 6: Final answer
   x = 1,303.97