Finding the Fourth Proportional to 1,446.69, 1,996.32 and 817.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,446.69 : 1,996.32 = 817.17 : x
2. Step 2: Convert to fraction form
   1,446.69/1,996.32 = 817.17/x
3. Step 3: Cross multiply
   1,446.69x = 1,996.32 × 817.17
4. Step 4: Simplify right side
   1,446.69x = 1,631,332.81
5. Step 5: Solve for x
   x = 1,631,332.81/1,446.69
6. Step 6: Final answer
   x = 1,127.63