Finding the Fourth Proportional to 2,209.98, 3,310.92 and 1,233.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,209.98 : 3,310.92 = 1,233.12 : x
2. Step 2: Convert to fraction form
   2,209.98/3,310.92 = 1,233.12/x
3. Step 3: Cross multiply
   2,209.98x = 3,310.92 × 1,233.12
4. Step 4: Simplify right side
   2,209.98x = 4,082,761.67
5. Step 5: Solve for x
   x = 4,082,761.67/2,209.98
6. Step 6: Final answer
   x = 1,847.42