Finding the Fourth Proportional to 1,044.72, 1,440.72 and 694.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,044.72 : 1,440.72 = 694.80 : x
2. Step 2: Convert to fraction form
   1,044.72/1,440.72 = 694.80/x
3. Step 3: Cross multiply
   1,044.72x = 1,440.72 × 694.80
4. Step 4: Simplify right side
   1,044.72x = 1,001,012.26
5. Step 5: Solve for x
   x = 1,001,012.26/1,044.72
6. Step 6: Final answer
   x = 958.16