Finding the Fourth Proportional to 2,747.70, 4,116.72 and 2,288.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,747.70 : 4,116.72 = 2,288.42 : x
2. Step 2: Convert to fraction form
   2,747.70/4,116.72 = 2,288.42/x
3. Step 3: Cross multiply
   2,747.70x = 4,116.72 × 2,288.42
4. Step 4: Simplify right side
   2,747.70x = 9,420,784.38
5. Step 5: Solve for x
   x = 9,420,784.38/2,747.70
6. Step 6: Final answer
   x = 3,428.61