Finding the Fourth Proportional to 2,227.78, 3,347.14 and 1,678.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,227.78 : 3,347.14 = 1,678.29 : x
2. Step 2: Convert to fraction form
   2,227.78/3,347.14 = 1,678.29/x
3. Step 3: Cross multiply
   2,227.78x = 3,347.14 × 1,678.29
4. Step 4: Simplify right side
   2,227.78x = 5,617,471.59
5. Step 5: Solve for x
   x = 5,617,471.59/2,227.78
6. Step 6: Final answer
   x = 2,521.56