Finding the Fourth Proportional to 2,608.28, 3,595.70 and 1,613

Step by Step Solution

1. Step 1: Write the proportion equation
   2,608.28 : 3,595.70 = 1,613 : x
2. Step 2: Convert to fraction form
   2,608.28/3,595.70 = 1,613/x
3. Step 3: Cross multiply
   2,608.28x = 3,595.70 × 1,613
4. Step 4: Simplify right side
   2,608.28x = 5,799,864.10
5. Step 5: Solve for x
   x = 5,799,864.10/2,608.28
6. Step 6: Final answer
   x = 2,223.64