Finding the Fourth Proportional to 2,608.92, 3,600.20 and 1,560.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,608.92 : 3,600.20 = 1,560.78 : x
2. Step 2: Convert to fraction form
   2,608.92/3,600.20 = 1,560.78/x
3. Step 3: Cross multiply
   2,608.92x = 3,600.20 × 1,560.78
4. Step 4: Simplify right side
   2,608.92x = 5,619,120.16
5. Step 5: Solve for x
   x = 5,619,120.16/2,608.92
6. Step 6: Final answer
   x = 2,153.81