Finding the Fourth Proportional to 2,095.19, 3,144.91 and 863.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,095.19 : 3,144.91 = 863.31 : x
2. Step 2: Convert to fraction form
   2,095.19/3,144.91 = 863.31/x
3. Step 3: Cross multiply
   2,095.19x = 3,144.91 × 863.31
4. Step 4: Simplify right side
   2,095.19x = 2,715,032.25
5. Step 5: Solve for x
   x = 2,715,032.25/2,095.19
6. Step 6: Final answer
   x = 1,295.84