Finding the Fourth Proportional to 3,980.34, 5,493.02 and 2,212.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,980.34 : 5,493.02 = 2,212.38 : x
2. Step 2: Convert to fraction form
   3,980.34/5,493.02 = 2,212.38/x
3. Step 3: Cross multiply
   3,980.34x = 5,493.02 × 2,212.38
4. Step 4: Simplify right side
   3,980.34x = 12,152,636.53
5. Step 5: Solve for x
   x = 12,152,636.53/3,980.34
6. Step 6: Final answer
   x = 3,053.17