Finding the Fourth Proportional to 2,608.87, 3,912.09 and 1,513.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,608.87 : 3,912.09 = 1,513.54 : x
2. Step 2: Convert to fraction form
   2,608.87/3,912.09 = 1,513.54/x
3. Step 3: Cross multiply
   2,608.87x = 3,912.09 × 1,513.54
4. Step 4: Simplify right side
   2,608.87x = 5,921,104.70
5. Step 5: Solve for x
   x = 5,921,104.70/2,608.87
6. Step 6: Final answer
   x = 2,269.61