Finding the Fourth Proportional to 3,981.09, 5,493.89 and 2,212.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,981.09 : 5,493.89 = 2,212.69 : x
2. Step 2: Convert to fraction form
   3,981.09/5,493.89 = 2,212.69/x
3. Step 3: Cross multiply
   3,981.09x = 5,493.89 × 2,212.69
4. Step 4: Simplify right side
   3,981.09x = 12,156,250.67
5. Step 5: Solve for x
   x = 12,156,250.67/3,981.09
6. Step 6: Final answer
   x = 3,053.50