Finding the Fourth Proportional to 2,608.74, 3,912.89 and 1,049.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,608.74 : 3,912.89 = 1,049.60 : x
2. Step 2: Convert to fraction form
   2,608.74/3,912.89 = 1,049.60/x
3. Step 3: Cross multiply
   2,608.74x = 3,912.89 × 1,049.60
4. Step 4: Simplify right side
   2,608.74x = 4,106,973.88
5. Step 5: Solve for x
   x = 4,106,973.88/2,608.74
6. Step 6: Final answer
   x = 1,574.31