Finding the Fourth Proportional to 2,221.34, 3,043.22 and 2,138.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,221.34 : 3,043.22 = 2,138.27 : x
2. Step 2: Convert to fraction form
   2,221.34/3,043.22 = 2,138.27/x
3. Step 3: Cross multiply
   2,221.34x = 3,043.22 × 2,138.27
4. Step 4: Simplify right side
   2,221.34x = 6,507,200.12
5. Step 5: Solve for x
   x = 6,507,200.12/2,221.34
6. Step 6: Final answer
   x = 2,929.41