Finding the Fourth Proportional to 1,446.89, 1,996.70 and 817.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,446.89 : 1,996.70 = 817.41 : x
2. Step 2: Convert to fraction form
   1,446.89/1,996.70 = 817.41/x
3. Step 3: Cross multiply
   1,446.89x = 1,996.70 × 817.41
4. Step 4: Simplify right side
   1,446.89x = 1,632,131.06
5. Step 5: Solve for x
   x = 1,632,131.06/1,446.89
6. Step 6: Final answer
   x = 1,128.03