Finding the Fourth Proportional to 1,407.46, 1,942.42 and 848.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,407.46 : 1,942.42 = 848.10 : x
2. Step 2: Convert to fraction form
   1,407.46/1,942.42 = 848.10/x
3. Step 3: Cross multiply
   1,407.46x = 1,942.42 × 848.10
4. Step 4: Simplify right side
   1,407.46x = 1,647,366.40
5. Step 5: Solve for x
   x = 1,647,366.40/1,407.46
6. Step 6: Final answer
   x = 1,170.45