Finding the Fourth Proportional to 2,162.94, 3,244.82 and 864.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,162.94 : 3,244.82 = 864.42 : x
2. Step 2: Convert to fraction form
   2,162.94/3,244.82 = 864.42/x
3. Step 3: Cross multiply
   2,162.94x = 3,244.82 × 864.42
4. Step 4: Simplify right side
   2,162.94x = 2,804,882.98
5. Step 5: Solve for x
   x = 2,804,882.98/2,162.94
6. Step 6: Final answer
   x = 1,296.79