Finding the Fourth Proportional to 2,162.46, 3,245.22 and 864.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,162.46 : 3,245.22 = 864.22 : x
2. Step 2: Convert to fraction form
   2,162.46/3,245.22 = 864.22/x
3. Step 3: Cross multiply
   2,162.46x = 3,245.22 × 864.22
4. Step 4: Simplify right side
   2,162.46x = 2,804,584.03
5. Step 5: Solve for x
   x = 2,804,584.03/2,162.46
6. Step 6: Final answer
   x = 1,296.94