Finding the Fourth Proportional to 2,608.25, 3,913.82 and 1,147.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,608.25 : 3,913.82 = 1,147.37 : x
2. Step 2: Convert to fraction form
   2,608.25/3,913.82 = 1,147.37/x
3. Step 3: Cross multiply
   2,608.25x = 3,913.82 × 1,147.37
4. Step 4: Simplify right side
   2,608.25x = 4,490,578.65
5. Step 5: Solve for x
   x = 4,490,578.65/2,608.25
6. Step 6: Final answer
   x = 1,721.68