Finding the Fourth Proportional to 2,608.24, 3,910.40 and 964.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,608.24 : 3,910.40 = 964.48 : x
2. Step 2: Convert to fraction form
   2,608.24/3,910.40 = 964.48/x
3. Step 3: Cross multiply
   2,608.24x = 3,910.40 × 964.48
4. Step 4: Simplify right side
   2,608.24x = 3,771,483.04
5. Step 5: Solve for x
   x = 3,771,483.04/2,608.24
6. Step 6: Final answer
   x = 1,445.99