Finding the Fourth Proportional to 1,446.89, 1,996.67 and 817.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,446.89 : 1,996.67 = 817.43 : x
2. Step 2: Convert to fraction form
   1,446.89/1,996.67 = 817.43/x
3. Step 3: Cross multiply
   1,446.89x = 1,996.67 × 817.43
4. Step 4: Simplify right side
   1,446.89x = 1,632,123.89
5. Step 5: Solve for x
   x = 1,632,123.89/1,446.89
6. Step 6: Final answer
   x = 1,128.03