Finding the Fourth Proportional to 1,446.47, 1,995.99 and 808.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,446.47 : 1,995.99 = 808.30 : x
2. Step 2: Convert to fraction form
   1,446.47/1,995.99 = 808.30/x
3. Step 3: Cross multiply
   1,446.47x = 1,995.99 × 808.30
4. Step 4: Simplify right side
   1,446.47x = 1,613,351.50
5. Step 5: Solve for x
   x = 1,613,351.50/1,446.47
6. Step 6: Final answer
   x = 1,115.37