Finding the Fourth Proportional to 2,205.88, 3,044.16 and 1,321.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,205.88 : 3,044.16 = 1,321.72 : x
2. Step 2: Convert to fraction form
   2,205.88/3,044.16 = 1,321.72/x
3. Step 3: Cross multiply
   2,205.88x = 3,044.16 × 1,321.72
4. Step 4: Simplify right side
   2,205.88x = 4,023,527.16
5. Step 5: Solve for x
   x = 4,023,527.16/2,205.88
6. Step 6: Final answer
   x = 1,824.00