Finding the Fourth Proportional to 2,419.97, 3,630.32 and 859.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,419.97 : 3,630.32 = 859.52 : x
2. Step 2: Convert to fraction form
   2,419.97/3,630.32 = 859.52/x
3. Step 3: Cross multiply
   2,419.97x = 3,630.32 × 859.52
4. Step 4: Simplify right side
   2,419.97x = 3,120,337.42
5. Step 5: Solve for x
   x = 3,120,337.42/2,419.97
6. Step 6: Final answer
   x = 1,289.41