Finding the Fourth Proportional to 1,407.92, 1,942.16 and 848.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,407.92 : 1,942.16 = 848.05 : x
2. Step 2: Convert to fraction form
   1,407.92/1,942.16 = 848.05/x
3. Step 3: Cross multiply
   1,407.92x = 1,942.16 × 848.05
4. Step 4: Simplify right side
   1,407.92x = 1,647,039.69
5. Step 5: Solve for x
   x = 1,647,039.69/1,407.92
6. Step 6: Final answer
   x = 1,169.84