Finding the Fourth Proportional to 1,144.05, 1,578.69 and 701.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,144.05 : 1,578.69 = 701.88 : x
2. Step 2: Convert to fraction form
   1,144.05/1,578.69 = 701.88/x
3. Step 3: Cross multiply
   1,144.05x = 1,578.69 × 701.88
4. Step 4: Simplify right side
   1,144.05x = 1,108,050.94
5. Step 5: Solve for x
   x = 1,108,050.94/1,144.05
6. Step 6: Final answer
   x = 968.53