Finding the Fourth Proportional to 2,228.30, 3,072.03 and 1,878.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,228.30 : 3,072.03 = 1,878.38 : x
2. Step 2: Convert to fraction form
   2,228.30/3,072.03 = 1,878.38/x
3. Step 3: Cross multiply
   2,228.30x = 3,072.03 × 1,878.38
4. Step 4: Simplify right side
   2,228.30x = 5,770,439.71
5. Step 5: Solve for x
   x = 5,770,439.71/2,228.30
6. Step 6: Final answer
   x = 2,589.62