Finding the Fourth Proportional to 1,408.24, 1,942.56 and 848.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,408.24 : 1,942.56 = 848.32 : x
2. Step 2: Convert to fraction form
   1,408.24/1,942.56 = 848.32/x
3. Step 3: Cross multiply
   1,408.24x = 1,942.56 × 848.32
4. Step 4: Simplify right side
   1,408.24x = 1,647,912.50
5. Step 5: Solve for x
   x = 1,647,912.50/1,408.24
6. Step 6: Final answer
   x = 1,170.19