Finding the Fourth Proportional to 2,206.42, 3,044.89 and 1,211.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,206.42 : 3,044.89 = 1,211.69 : x
2. Step 2: Convert to fraction form
   2,206.42/3,044.89 = 1,211.69/x
3. Step 3: Cross multiply
   2,206.42x = 3,044.89 × 1,211.69
4. Step 4: Simplify right side
   2,206.42x = 3,689,471.89
5. Step 5: Solve for x
   x = 3,689,471.89/2,206.42
6. Step 6: Final answer
   x = 1,672.15