Finding the Fourth Proportional to 1,446.74, 1,996.60 and 817.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,446.74 : 1,996.60 = 817.05 : x
2. Step 2: Convert to fraction form
   1,446.74/1,996.60 = 817.05/x
3. Step 3: Cross multiply
   1,446.74x = 1,996.60 × 817.05
4. Step 4: Simplify right side
   1,446.74x = 1,631,322.03
5. Step 5: Solve for x
   x = 1,631,322.03/1,446.74
6. Step 6: Final answer
   x = 1,127.58