Finding the Fourth Proportional to 2,231.00, 3,078.74 and 1,236.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,231.00 : 3,078.74 = 1,236.22 : x
2. Step 2: Convert to fraction form
   2,231.00/3,078.74 = 1,236.22/x
3. Step 3: Cross multiply
   2,231.00x = 3,078.74 × 1,236.22
4. Step 4: Simplify right side
   2,231.00x = 3,805,993.78
5. Step 5: Solve for x
   x = 3,805,993.78/2,231.00
6. Step 6: Final answer
   x = 1,705.96