Finding the Fourth Proportional to 1,046.88, 1,443.72 and 714.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,046.88 : 1,443.72 = 714.72 : x
2. Step 2: Convert to fraction form
   1,046.88/1,443.72 = 714.72/x
3. Step 3: Cross multiply
   1,046.88x = 1,443.72 × 714.72
4. Step 4: Simplify right side
   1,046.88x = 1,031,855.56
5. Step 5: Solve for x
   x = 1,031,855.56/1,046.88
6. Step 6: Final answer
   x = 985.65