Finding the Fourth Proportional to 2,886.22, 3,981.81 and 2,214.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,886.22 : 3,981.81 = 2,214.15 : x
2. Step 2: Convert to fraction form
   2,886.22/3,981.81 = 2,214.15/x
3. Step 3: Cross multiply
   2,886.22x = 3,981.81 × 2,214.15
4. Step 4: Simplify right side
   2,886.22x = 8,816,317.98
5. Step 5: Solve for x
   x = 8,816,317.98/2,886.22
6. Step 6: Final answer
   x = 3,054.62