Finding the Fourth Proportional to 1,067.27, 1,471.12 and 712.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,067.27 : 1,471.12 = 712.49 : x
2. Step 2: Convert to fraction form
   1,067.27/1,471.12 = 712.49/x
3. Step 3: Cross multiply
   1,067.27x = 1,471.12 × 712.49
4. Step 4: Simplify right side
   1,067.27x = 1,048,147.37
5. Step 5: Solve for x
   x = 1,048,147.37/1,067.27
6. Step 6: Final answer
   x = 982.09