Finding the Fourth Proportional to 2,321.74, 3,204.27 and 1,613.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,321.74 : 3,204.27 = 1,613.40 : x
2. Step 2: Convert to fraction form
   2,321.74/3,204.27 = 1,613.40/x
3. Step 3: Cross multiply
   2,321.74x = 3,204.27 × 1,613.40
4. Step 4: Simplify right side
   2,321.74x = 5,169,751.15
5. Step 5: Solve for x
   x = 5,169,751.15/2,321.74
6. Step 6: Final answer
   x = 2,226.67