Finding the Fourth Proportional to 1,353.89, 2,025.78 and 964.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,353.89 : 2,025.78 = 964.79 : x
2. Step 2: Convert to fraction form
   1,353.89/2,025.78 = 964.79/x
3. Step 3: Cross multiply
   1,353.89x = 2,025.78 × 964.79
4. Step 4: Simplify right side
   1,353.89x = 1,954,452.29
5. Step 5: Solve for x
   x = 1,954,452.29/1,353.89
6. Step 6: Final answer
   x = 1,443.58