Finding the Fourth Proportional to 1,144.38, 1,717.41 and 885.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,144.38 : 1,717.41 = 885.02 : x
2. Step 2: Convert to fraction form
   1,144.38/1,717.41 = 885.02/x
3. Step 3: Cross multiply
   1,144.38x = 1,717.41 × 885.02
4. Step 4: Simplify right side
   1,144.38x = 1,519,942.20
5. Step 5: Solve for x
   x = 1,519,942.20/1,144.38
6. Step 6: Final answer
   x = 1,328.18