Finding the Fourth Proportional to 2,185.24, 3,275.72 and 868.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,185.24 : 3,275.72 = 868.56 : x
2. Step 2: Convert to fraction form
   2,185.24/3,275.72 = 868.56/x
3. Step 3: Cross multiply
   2,185.24x = 3,275.72 × 868.56
4. Step 4: Simplify right side
   2,185.24x = 2,845,159.36
5. Step 5: Solve for x
   x = 2,845,159.36/2,185.24
6. Step 6: Final answer
   x = 1,301.99