Finding the Fourth Proportional to 3,874.42, 5,346.36 and 2,280.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,874.42 : 5,346.36 = 2,280.82 : x
2. Step 2: Convert to fraction form
   3,874.42/5,346.36 = 2,280.82/x
3. Step 3: Cross multiply
   3,874.42x = 5,346.36 × 2,280.82
4. Step 4: Simplify right side
   3,874.42x = 12,194,084.82
5. Step 5: Solve for x
   x = 12,194,084.82/3,874.42
6. Step 6: Final answer
   x = 3,147.33