Finding the Fourth Proportional to 2,162.27, 3,244.71 and 863.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,162.27 : 3,244.71 = 863.63 : x
2. Step 2: Convert to fraction form
   2,162.27/3,244.71 = 863.63/x
3. Step 3: Cross multiply
   2,162.27x = 3,244.71 × 863.63
4. Step 4: Simplify right side
   2,162.27x = 2,802,212.67
5. Step 5: Solve for x
   x = 2,802,212.67/2,162.27
6. Step 6: Final answer
   x = 1,295.96