Finding the Fourth Proportional to 1,046.32, 1,443.96 and 715.44

Step by Step Solution

1. Step 1: Write the proportion equation
   1,046.32 : 1,443.96 = 715.44 : x
2. Step 2: Convert to fraction form
   1,046.32/1,443.96 = 715.44/x
3. Step 3: Cross multiply
   1,046.32x = 1,443.96 × 715.44
4. Step 4: Simplify right side
   1,046.32x = 1,033,066.74
5. Step 5: Solve for x
   x = 1,033,066.74/1,046.32
6. Step 6: Final answer
   x = 987.33