Finding the Fourth Proportional to 3,967.98, 5,474.78 and 2,395.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,967.98 : 5,474.78 = 2,395.50 : x
2. Step 2: Convert to fraction form
   3,967.98/5,474.78 = 2,395.50/x
3. Step 3: Cross multiply
   3,967.98x = 5,474.78 × 2,395.50
4. Step 4: Simplify right side
   3,967.98x = 13,114,835.49
5. Step 5: Solve for x
   x = 13,114,835.49/3,967.98
6. Step 6: Final answer
   x = 3,305.17