Finding the Fourth Proportional to 2,608.60, 3,599.82 and 1,613.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,608.60 : 3,599.82 = 1,613.62 : x
2. Step 2: Convert to fraction form
   2,608.60/3,599.82 = 1,613.62/x
3. Step 3: Cross multiply
   2,608.60x = 3,599.82 × 1,613.62
4. Step 4: Simplify right side
   2,608.60x = 5,808,715.48
5. Step 5: Solve for x
   x = 5,808,715.48/2,608.60
6. Step 6: Final answer
   x = 2,226.76