Finding the Fourth Proportional to 2,608.02, 3,912.26 and 964.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,608.02 : 3,912.26 = 964.71 : x
2. Step 2: Convert to fraction form
   2,608.02/3,912.26 = 964.71/x
3. Step 3: Cross multiply
   2,608.02x = 3,912.26 × 964.71
4. Step 4: Simplify right side
   2,608.02x = 3,774,191.52
5. Step 5: Solve for x
   x = 3,774,191.52/2,608.02
6. Step 6: Final answer
   x = 1,447.15