Finding the Fourth Proportional to 3,974.45, 5,484.72 and 2,206.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,974.45 : 5,484.72 = 2,206.05 : x
2. Step 2: Convert to fraction form
   3,974.45/5,484.72 = 2,206.05/x
3. Step 3: Cross multiply
   3,974.45x = 5,484.72 × 2,206.05
4. Step 4: Simplify right side
   3,974.45x = 12,099,566.56
5. Step 5: Solve for x
   x = 12,099,566.56/3,974.45
6. Step 6: Final answer
   x = 3,044.34