Finding the Fourth Proportional to 1,066.73, 1,470.65 and 712.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066.73 : 1,470.65 = 712.69 : x
2. Step 2: Convert to fraction form
   1,066.73/1,470.65 = 712.69/x
3. Step 3: Cross multiply
   1,066.73x = 1,470.65 × 712.69
4. Step 4: Simplify right side
   1,066.73x = 1,048,110.31
5. Step 5: Solve for x
   x = 1,048,110.31/1,066.73
6. Step 6: Final answer
   x = 982.55