Finding the Fourth Proportional to 1,067.58, 1,473.34 and 648.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,067.58 : 1,473.34 = 648.05 : x
2. Step 2: Convert to fraction form
   1,067.58/1,473.34 = 648.05/x
3. Step 3: Cross multiply
   1,067.58x = 1,473.34 × 648.05
4. Step 4: Simplify right side
   1,067.58x = 954,798.50
5. Step 5: Solve for x
   x = 954,798.50/1,067.58
6. Step 6: Final answer
   x = 894.36