Finding the Fourth Proportional to 2,327.16, 3,488.69 and 865.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,327.16 : 3,488.69 = 865.37 : x
2. Step 2: Convert to fraction form
   2,327.16/3,488.69 = 865.37/x
3. Step 3: Cross multiply
   2,327.16x = 3,488.69 × 865.37
4. Step 4: Simplify right side
   2,327.16x = 3,018,985.90
5. Step 5: Solve for x
   x = 3,018,985.90/2,327.16
6. Step 6: Final answer
   x = 1,297.28