Finding the Fourth Proportional to 3,958.23, 5,462.64 and 2,280.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,958.23 : 5,462.64 = 2,280.12 : x
2. Step 2: Convert to fraction form
   3,958.23/5,462.64 = 2,280.12/x
3. Step 3: Cross multiply
   3,958.23x = 5,462.64 × 2,280.12
4. Step 4: Simplify right side
   3,958.23x = 12,455,474.72
5. Step 5: Solve for x
   x = 12,455,474.72/3,958.23
6. Step 6: Final answer
   x = 3,146.73