Finding the Fourth Proportional to 1,065.82, 1,470.50 and 672.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,065.82 : 1,470.50 = 672.96 : x
2. Step 2: Convert to fraction form
   1,065.82/1,470.50 = 672.96/x
3. Step 3: Cross multiply
   1,065.82x = 1,470.50 × 672.96
4. Step 4: Simplify right side
   1,065.82x = 989,587.68
5. Step 5: Solve for x
   x = 989,587.68/1,065.82
6. Step 6: Final answer
   x = 928.48