Finding the Fourth Proportional to 2,326.86, 3,488.67 and 865.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,326.86 : 3,488.67 = 865.62 : x
2. Step 2: Convert to fraction form
   2,326.86/3,488.67 = 865.62/x
3. Step 3: Cross multiply
   2,326.86x = 3,488.67 × 865.62
4. Step 4: Simplify right side
   2,326.86x = 3,019,862.53
5. Step 5: Solve for x
   x = 3,019,862.53/2,326.86
6. Step 6: Final answer
   x = 1,297.83