Finding the Fourth Proportional to 2,049.22, 3,075.42 and 1,428.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,049.22 : 3,075.42 = 1,428.89 : x
2. Step 2: Convert to fraction form
   2,049.22/3,075.42 = 1,428.89/x
3. Step 3: Cross multiply
   2,049.22x = 3,075.42 × 1,428.89
4. Step 4: Simplify right side
   2,049.22x = 4,394,421.51
5. Step 5: Solve for x
   x = 4,394,421.51/2,049.22
6. Step 6: Final answer
   x = 2,144.44