Finding the Fourth Proportional to 2,286.72, 3,154.56 and 1,354.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,286.72 : 3,154.56 = 1,354.56 : x
2. Step 2: Convert to fraction form
   2,286.72/3,154.56 = 1,354.56/x
3. Step 3: Cross multiply
   2,286.72x = 3,154.56 × 1,354.56
4. Step 4: Simplify right side
   2,286.72x = 4,273,040.79
5. Step 5: Solve for x
   x = 4,273,040.79/2,286.72
6. Step 6: Final answer
   x = 1,868.63