Finding the Fourth Proportional to 2,400.32, 3,597.60 and 860.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,400.32 : 3,597.60 = 860.48 : x
2. Step 2: Convert to fraction form
   2,400.32/3,597.60 = 860.48/x
3. Step 3: Cross multiply
   2,400.32x = 3,597.60 × 860.48
4. Step 4: Simplify right side
   2,400.32x = 3,095,662.85
5. Step 5: Solve for x
   x = 3,095,662.85/2,400.32
6. Step 6: Final answer
   x = 1,289.69