Finding the Fourth Proportional to 2,205.87, 3,044.43 and 1,321.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,205.87 : 3,044.43 = 1,321.89 : x
2. Step 2: Convert to fraction form
   2,205.87/3,044.43 = 1,321.89/x
3. Step 3: Cross multiply
   2,205.87x = 3,044.43 × 1,321.89
4. Step 4: Simplify right side
   2,205.87x = 4,024,401.57
5. Step 5: Solve for x
   x = 4,024,401.57/2,205.87
6. Step 6: Final answer
   x = 1,824.41