Finding the Fourth Proportional to 2,238.72, 3,355.93 and 1,198.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.72 : 3,355.93 = 1,198.06 : x
2. Step 2: Convert to fraction form
   2,238.72/3,355.93 = 1,198.06/x
3. Step 3: Cross multiply
   2,238.72x = 3,355.93 × 1,198.06
4. Step 4: Simplify right side
   2,238.72x = 4,020,605.50
5. Step 5: Solve for x
   x = 4,020,605.50/2,238.72
6. Step 6: Final answer
   x = 1,795.94