Finding the Fourth Proportional to 2,317.85, 3,198.89 and 1,609.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,317.85 : 3,198.89 = 1,609.50 : x
2. Step 2: Convert to fraction form
   2,317.85/3,198.89 = 1,609.50/x
3. Step 3: Cross multiply
   2,317.85x = 3,198.89 × 1,609.50
4. Step 4: Simplify right side
   2,317.85x = 5,148,629.47
5. Step 5: Solve for x
   x = 5,148,629.47/2,317.85
6. Step 6: Final answer
   x = 2,221.30