Finding the Fourth Proportional to 1,067.51, 1,471.73 and 800.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,067.51 : 1,471.73 = 800.81 : x
2. Step 2: Convert to fraction form
   1,067.51/1,471.73 = 800.81/x
3. Step 3: Cross multiply
   1,067.51x = 1,471.73 × 800.81
4. Step 4: Simplify right side
   1,067.51x = 1,178,581.78
5. Step 5: Solve for x
   x = 1,178,581.78/1,067.51
6. Step 6: Final answer
   x = 1,104.05