Finding the Fourth Proportional to 3,981.58, 5,494.62 and 2,213.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,981.58 : 5,494.62 = 2,213.38 : x
2. Step 2: Convert to fraction form
   3,981.58/5,494.62 = 2,213.38/x
3. Step 3: Cross multiply
   3,981.58x = 5,494.62 × 2,213.38
4. Step 4: Simplify right side
   3,981.58x = 12,161,682.02
5. Step 5: Solve for x
   x = 12,161,682.02/3,981.58
6. Step 6: Final answer
   x = 3,054.49