Finding the Fourth Proportional to 2,198.72, 3,294.84 and 1,224.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,198.72 : 3,294.84 = 1,224.56 : x
2. Step 2: Convert to fraction form
   2,198.72/3,294.84 = 1,224.56/x
3. Step 3: Cross multiply
   2,198.72x = 3,294.84 × 1,224.56
4. Step 4: Simplify right side
   2,198.72x = 4,034,729.27
5. Step 5: Solve for x
   x = 4,034,729.27/2,198.72
6. Step 6: Final answer
   x = 1,835.04