Finding the Fourth Proportional to 2,326.03, 3,488.51 and 865.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,326.03 : 3,488.51 = 865.87 : x
2. Step 2: Convert to fraction form
   2,326.03/3,488.51 = 865.87/x
3. Step 3: Cross multiply
   2,326.03x = 3,488.51 × 865.87
4. Step 4: Simplify right side
   2,326.03x = 3,020,591.82
5. Step 5: Solve for x
   x = 3,020,591.82/2,326.03
6. Step 6: Final answer
   x = 1,298.60