Finding the Fourth Proportional to 2,162.56, 3,244.92 and 864.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,162.56 : 3,244.92 = 864.94 : x
2. Step 2: Convert to fraction form
   2,162.56/3,244.92 = 864.94/x
3. Step 3: Cross multiply
   2,162.56x = 3,244.92 × 864.94
4. Step 4: Simplify right side
   2,162.56x = 2,806,661.10
5. Step 5: Solve for x
   x = 2,806,661.10/2,162.56
6. Step 6: Final answer
   x = 1,297.84