Finding the Fourth Proportional to 1,615.33, 2,422.22 and 965.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,615.33 : 2,422.22 = 965.89 : x
2. Step 2: Convert to fraction form
   1,615.33/2,422.22 = 965.89/x
3. Step 3: Cross multiply
   1,615.33x = 2,422.22 × 965.89
4. Step 4: Simplify right side
   1,615.33x = 2,339,593.25
5. Step 5: Solve for x
   x = 2,339,593.25/1,615.33
6. Step 6: Final answer
   x = 1,448.37