Finding the Fourth Proportional to 1,144.42, 1,579.17 and 969.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,144.42 : 1,579.17 = 969.46 : x
2. Step 2: Convert to fraction form
   1,144.42/1,579.17 = 969.46/x
3. Step 3: Cross multiply
   1,144.42x = 1,579.17 × 969.46
4. Step 4: Simplify right side
   1,144.42x = 1,530,942.15
5. Step 5: Solve for x
   x = 1,530,942.15/1,144.42
6. Step 6: Final answer
   x = 1,337.75