Finding the Fourth Proportional to 2,608.80, 3,598.04 and 1,613.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,608.80 : 3,598.04 = 1,613.38 : x
2. Step 2: Convert to fraction form
   2,608.80/3,598.04 = 1,613.38/x
3. Step 3: Cross multiply
   2,608.80x = 3,598.04 × 1,613.38
4. Step 4: Simplify right side
   2,608.80x = 5,804,997.71
5. Step 5: Solve for x
   x = 5,804,997.71/2,608.80
6. Step 6: Final answer
   x = 2,225.16