Finding the Fourth Proportional to 2,326.37, 3,488.87 and 865.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,326.37 : 3,488.87 = 865.17 : x
2. Step 2: Convert to fraction form
   2,326.37/3,488.87 = 865.17/x
3. Step 3: Cross multiply
   2,326.37x = 3,488.87 × 865.17
4. Step 4: Simplify right side
   2,326.37x = 3,018,467.82
5. Step 5: Solve for x
   x = 3,018,467.82/2,326.37
6. Step 6: Final answer
   x = 1,297.50