Finding the Fourth Proportional to 2,228.90, 3,074.47 and 1,756.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,228.90 : 3,074.47 = 1,756.28 : x
2. Step 2: Convert to fraction form
   2,228.90/3,074.47 = 1,756.28/x
3. Step 3: Cross multiply
   2,228.90x = 3,074.47 × 1,756.28
4. Step 4: Simplify right side
   2,228.90x = 5,399,633.47
5. Step 5: Solve for x
   x = 5,399,633.47/2,228.90
6. Step 6: Final answer
   x = 2,422.56