Finding the Fourth Proportional to 3,982.05, 5,495.42 and 2,213.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,982.05 : 5,495.42 = 2,213.69 : x
2. Step 2: Convert to fraction form
   3,982.05/5,495.42 = 2,213.69/x
3. Step 3: Cross multiply
   3,982.05x = 5,495.42 × 2,213.69
4. Step 4: Simplify right side
   3,982.05x = 12,165,142.56
5. Step 5: Solve for x
   x = 12,165,142.56/3,982.05
6. Step 6: Final answer
   x = 3,054.99