Finding the Fourth Proportional to 3,997.03, 5,515.69 and 2,228.29

Step by Step Solution

1. Step 1: Write the proportion equation
   3,997.03 : 5,515.69 = 2,228.29 : x
2. Step 2: Convert to fraction form
   3,997.03/5,515.69 = 2,228.29/x
3. Step 3: Cross multiply
   3,997.03x = 5,515.69 × 2,228.29
4. Step 4: Simplify right side
   3,997.03x = 12,290,518.15
5. Step 5: Solve for x
   x = 12,290,518.15/3,997.03
6. Step 6: Final answer
   x = 3,074.92