Finding the Fourth Proportional to 2,399.32, 3,596.10 and 859.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,399.32 : 3,596.10 = 859.48 : x
2. Step 2: Convert to fraction form
   2,399.32/3,596.10 = 859.48/x
3. Step 3: Cross multiply
   2,399.32x = 3,596.10 × 859.48
4. Step 4: Simplify right side
   2,399.32x = 3,090,776.03
5. Step 5: Solve for x
   x = 3,090,776.03/2,399.32
6. Step 6: Final answer
   x = 1,288.19