Finding the Fourth Proportional to 1,144.52, 1,579.16 and 696.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,144.52 : 1,579.16 = 696.28 : x
2. Step 2: Convert to fraction form
   1,144.52/1,579.16 = 696.28/x
3. Step 3: Cross multiply
   1,144.52x = 1,579.16 × 696.28
4. Step 4: Simplify right side
   1,144.52x = 1,099,537.52
5. Step 5: Solve for x
   x = 1,099,537.52/1,144.52
6. Step 6: Final answer
   x = 960.70