Finding the Fourth Proportional to 2,198.16, 3,297.86 and 1,224.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,198.16 : 3,297.86 = 1,224.96 : x
2. Step 2: Convert to fraction form
   2,198.16/3,297.86 = 1,224.96/x
3. Step 3: Cross multiply
   2,198.16x = 3,297.86 × 1,224.96
4. Step 4: Simplify right side
   2,198.16x = 4,039,746.59
5. Step 5: Solve for x
   x = 4,039,746.59/2,198.16
6. Step 6: Final answer
   x = 1,837.79