Finding the Fourth Proportional to 3,843.56, 5,304.89 and 2,516.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,843.56 : 5,304.89 = 2,516.78 : x
2. Step 2: Convert to fraction form
   3,843.56/5,304.89 = 2,516.78/x
3. Step 3: Cross multiply
   3,843.56x = 5,304.89 × 2,516.78
4. Step 4: Simplify right side
   3,843.56x = 13,351,228.47
5. Step 5: Solve for x
   x = 13,351,228.47/3,843.56
6. Step 6: Final answer
   x = 3,473.66