Finding the Fourth Proportional to 3,994.94, 5,513.06 and 2,226.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,994.94 : 5,513.06 = 2,226.72 : x
2. Step 2: Convert to fraction form
   3,994.94/5,513.06 = 2,226.72/x
3. Step 3: Cross multiply
   3,994.94x = 5,513.06 × 2,226.72
4. Step 4: Simplify right side
   3,994.94x = 12,276,040.96
5. Step 5: Solve for x
   x = 12,276,040.96/3,994.94
6. Step 6: Final answer
   x = 3,072.90