Finding the Fourth Proportional to 3,994.50, 5,512.42 and 2,226.07

Step by Step Solution

1. Step 1: Write the proportion equation
   3,994.50 : 5,512.42 = 2,226.07 : x
2. Step 2: Convert to fraction form
   3,994.50/5,512.42 = 2,226.07/x
3. Step 3: Cross multiply
   3,994.50x = 5,512.42 × 2,226.07
4. Step 4: Simplify right side
   3,994.50x = 12,271,042.46
5. Step 5: Solve for x
   x = 12,271,042.46/3,994.50
6. Step 6: Final answer
   x = 3,071.98