Finding the Fourth Proportional to 3,993.82, 5,511.64 and 2,225.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,993.82 : 5,511.64 = 2,225.42 : x
2. Step 2: Convert to fraction form
   3,993.82/5,511.64 = 2,225.42/x
3. Step 3: Cross multiply
   3,993.82x = 5,511.64 × 2,225.42
4. Step 4: Simplify right side
   3,993.82x = 12,265,713.89
5. Step 5: Solve for x
   x = 12,265,713.89/3,993.82
6. Step 6: Final answer
   x = 3,071.17