Finding the Fourth Proportional to 3,981.47, 5,494.25 and 2,213.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,981.47 : 5,494.25 = 2,213.18 : x
2. Step 2: Convert to fraction form
   3,981.47/5,494.25 = 2,213.18/x
3. Step 3: Cross multiply
   3,981.47x = 5,494.25 × 2,213.18
4. Step 4: Simplify right side
   3,981.47x = 12,159,742.28
5. Step 5: Solve for x
   x = 12,159,742.28/3,981.47
6. Step 6: Final answer
   x = 3,054.08