Finding the Fourth Proportional to 1,167.16, 1,608.82 and 1,144.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,167.16 : 1,608.82 = 1,144.12 : x
2. Step 2: Convert to fraction form
   1,167.16/1,608.82 = 1,144.12/x
3. Step 3: Cross multiply
   1,167.16x = 1,608.82 × 1,144.12
4. Step 4: Simplify right side
   1,167.16x = 1,840,683.14
5. Step 5: Solve for x
   x = 1,840,683.14/1,167.16
6. Step 6: Final answer
   x = 1,577.06