Finding the Fourth Proportional to 3,996.35, 5,515.05 and 2,228.00

Step by Step Solution

1. Step 1: Write the proportion equation
   3,996.35 : 5,515.05 = 2,228.00 : x
2. Step 2: Convert to fraction form
   3,996.35/5,515.05 = 2,228.00/x
3. Step 3: Cross multiply
   3,996.35x = 5,515.05 × 2,228.00
4. Step 4: Simplify right side
   3,996.35x = 12,287,503.82
5. Step 5: Solve for x
   x = 12,287,503.82/3,996.35
6. Step 6: Final answer
   x = 3,074.69