Finding the Fourth Proportional to 2,211.14, 3,049.98 and 1,643.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,211.14 : 3,049.98 = 1,643.47 : x
2. Step 2: Convert to fraction form
   2,211.14/3,049.98 = 1,643.47/x
3. Step 3: Cross multiply
   2,211.14x = 3,049.98 × 1,643.47
4. Step 4: Simplify right side
   2,211.14x = 5,012,550.63
5. Step 5: Solve for x
   x = 5,012,550.63/2,211.14
6. Step 6: Final answer
   x = 2,266.95