Finding the Fourth Proportional to 3,787.07, 5,678.71 and 2,227.55

Step by Step Solution

1. Step 1: Write the proportion equation
   3,787.07 : 5,678.71 = 2,227.55 : x
2. Step 2: Convert to fraction form
   3,787.07/5,678.71 = 2,227.55/x
3. Step 3: Cross multiply
   3,787.07x = 5,678.71 × 2,227.55
4. Step 4: Simplify right side
   3,787.07x = 12,649,610.46
5. Step 5: Solve for x
   x = 12,649,610.46/3,787.07
6. Step 6: Final answer
   x = 3,340.21