Finding the Fourth Proportional to 2,222.51, 3,044.79 and 2,139.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,222.51 : 3,044.79 = 2,139.41 : x
2. Step 2: Convert to fraction form
   2,222.51/3,044.79 = 2,139.41/x
3. Step 3: Cross multiply
   2,222.51x = 3,044.79 × 2,139.41
4. Step 4: Simplify right side
   2,222.51x = 6,514,061.79
5. Step 5: Solve for x
   x = 6,514,061.79/2,222.51
6. Step 6: Final answer
   x = 2,930.95