Finding the Fourth Proportional to 2,425.36, 3,636.42 and 964.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,425.36 : 3,636.42 = 964.12 : x
2. Step 2: Convert to fraction form
   2,425.36/3,636.42 = 964.12/x
3. Step 3: Cross multiply
   2,425.36x = 3,636.42 × 964.12
4. Step 4: Simplify right side
   2,425.36x = 3,505,945.25
5. Step 5: Solve for x
   x = 3,505,945.25/2,425.36
6. Step 6: Final answer
   x = 1,445.54