Finding the Fourth Proportional to 2,270.12, 3,404.16 and 808.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,270.12 : 3,404.16 = 808.27 : x
2. Step 2: Convert to fraction form
   2,270.12/3,404.16 = 808.27/x
3. Step 3: Cross multiply
   2,270.12x = 3,404.16 × 808.27
4. Step 4: Simplify right side
   2,270.12x = 2,751,471.89
5. Step 5: Solve for x
   x = 2,751,471.89/2,270.12
6. Step 6: Final answer
   x = 1,212.04