Finding the Fourth Proportional to 1,446.37, 1,996.28 and 857.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,446.37 : 1,996.28 = 857.25 : x
2. Step 2: Convert to fraction form
   1,446.37/1,996.28 = 857.25/x
3. Step 3: Cross multiply
   1,446.37x = 1,996.28 × 857.25
4. Step 4: Simplify right side
   1,446.37x = 1,711,309.96
5. Step 5: Solve for x
   x = 1,711,309.96/1,446.37
6. Step 6: Final answer
   x = 1,183.18