Finding the Fourth Proportional to 2,595.48, 3,892.59 and 863.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,595.48 : 3,892.59 = 863.88 : x
2. Step 2: Convert to fraction form
   2,595.48/3,892.59 = 863.88/x
3. Step 3: Cross multiply
   2,595.48x = 3,892.59 × 863.88
4. Step 4: Simplify right side
   2,595.48x = 3,362,730.65
5. Step 5: Solve for x
   x = 3,362,730.65/2,595.48
6. Step 6: Final answer
   x = 1,295.61