Finding the Fourth Proportional to 2,256.63, 3,383.37 and 868.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,256.63 : 3,383.37 = 868.80 : x
2. Step 2: Convert to fraction form
   2,256.63/3,383.37 = 868.80/x
3. Step 3: Cross multiply
   2,256.63x = 3,383.37 × 868.80
4. Step 4: Simplify right side
   2,256.63x = 2,939,471.86
5. Step 5: Solve for x
   x = 2,939,471.86/2,256.63
6. Step 6: Final answer
   x = 1,302.59