Finding the Fourth Proportional to 1,067.69, 1,475.19 and 848.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,067.69 : 1,475.19 = 848.31 : x
2. Step 2: Convert to fraction form
   1,067.69/1,475.19 = 848.31/x
3. Step 3: Cross multiply
   1,067.69x = 1,475.19 × 848.31
4. Step 4: Simplify right side
   1,067.69x = 1,251,418.43
5. Step 5: Solve for x
   x = 1,251,418.43/1,067.69
6. Step 6: Final answer
   x = 1,172.09