Finding the Fourth Proportional to 2,595.06, 3,892.98 and 863.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,595.06 : 3,892.98 = 863.28 : x
2. Step 2: Convert to fraction form
   2,595.06/3,892.98 = 863.28/x
3. Step 3: Cross multiply
   2,595.06x = 3,892.98 × 863.28
4. Step 4: Simplify right side
   2,595.06x = 3,360,731.77
5. Step 5: Solve for x
   x = 3,360,731.77/2,595.06
6. Step 6: Final answer
   x = 1,295.05