Finding the Fourth Proportional to 3,967.42, 5,474.97 and 2,288.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,967.42 : 5,474.97 = 2,288.83 : x
2. Step 2: Convert to fraction form
   3,967.42/5,474.97 = 2,288.83/x
3. Step 3: Cross multiply
   3,967.42x = 5,474.97 × 2,288.83
4. Step 4: Simplify right side
   3,967.42x = 12,531,275.59
5. Step 5: Solve for x
   x = 12,531,275.59/3,967.42
6. Step 6: Final answer
   x = 3,158.55