Finding the Fourth Proportional to 2,426.56, 3,640.20 and 965.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,426.56 : 3,640.20 = 965.68 : x
2. Step 2: Convert to fraction form
   2,426.56/3,640.20 = 965.68/x
3. Step 3: Cross multiply
   2,426.56x = 3,640.20 × 965.68
4. Step 4: Simplify right side
   2,426.56x = 3,515,268.34
5. Step 5: Solve for x
   x = 3,515,268.34/2,426.56
6. Step 6: Final answer
   x = 1,448.66