Finding the Fourth Proportional to 1,446.59, 1,996.31 and 857.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,446.59 : 1,996.31 = 857.00 : x
2. Step 2: Convert to fraction form
   1,446.59/1,996.31 = 857.00/x
3. Step 3: Cross multiply
   1,446.59x = 1,996.31 × 857.00
4. Step 4: Simplify right side
   1,446.59x = 1,710,844.80
5. Step 5: Solve for x
   x = 1,710,844.80/1,446.59
6. Step 6: Final answer
   x = 1,182.67