Finding the Fourth Proportional to 2,427.29, 3,640.73 and 966.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,427.29 : 3,640.73 = 966.05 : x
2. Step 2: Convert to fraction form
   2,427.29/3,640.73 = 966.05/x
3. Step 3: Cross multiply
   2,427.29x = 3,640.73 × 966.05
4. Step 4: Simplify right side
   2,427.29x = 3,517,127.22
5. Step 5: Solve for x
   x = 3,517,127.22/2,427.29
6. Step 6: Final answer
   x = 1,448.99