Finding the Fourth Proportional to 3,589.56, 5,379.42 and 2,288.70

Step by Step Solution

1. Step 1: Write the proportion equation
   3,589.56 : 5,379.42 = 2,288.70 : x
2. Step 2: Convert to fraction form
   3,589.56/5,379.42 = 2,288.70/x
3. Step 3: Cross multiply
   3,589.56x = 5,379.42 × 2,288.70
4. Step 4: Simplify right side
   3,589.56x = 12,311,878.55
5. Step 5: Solve for x
   x = 12,311,878.55/3,589.56
6. Step 6: Final answer
   x = 3,429.91