Finding the Fourth Proportional to 2,049.42, 3,074.90 and 1,228.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,049.42 : 3,074.90 = 1,228.28 : x
2. Step 2: Convert to fraction form
   2,049.42/3,074.90 = 1,228.28/x
3. Step 3: Cross multiply
   2,049.42x = 3,074.90 × 1,228.28
4. Step 4: Simplify right side
   2,049.42x = 3,776,838.17
5. Step 5: Solve for x
   x = 3,776,838.17/2,049.42
6. Step 6: Final answer
   x = 1,842.88