Finding the Fourth Proportional to 1,019.28, 1,522.28 and 963.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,019.28 : 1,522.28 = 963.39 : x
2. Step 2: Convert to fraction form
   1,019.28/1,522.28 = 963.39/x
3. Step 3: Cross multiply
   1,019.28x = 1,522.28 × 963.39
4. Step 4: Simplify right side
   1,019.28x = 1,466,544.51
5. Step 5: Solve for x
   x = 1,466,544.51/1,019.28
6. Step 6: Final answer
   x = 1,438.80