Finding the Fourth Proportional to 2,206.03, 3,044.31 and 1,211.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,206.03 : 3,044.31 = 1,211.31 : x
2. Step 2: Convert to fraction form
   2,206.03/3,044.31 = 1,211.31/x
3. Step 3: Cross multiply
   2,206.03x = 3,044.31 × 1,211.31
4. Step 4: Simplify right side
   2,206.03x = 3,687,603.15
5. Step 5: Solve for x
   x = 3,687,603.15/2,206.03
6. Step 6: Final answer
   x = 1,671.60