Finding the Fourth Proportional to 3,951.05, 5,453.37 and 2,378.84

Step by Step Solution

1. Step 1: Write the proportion equation
   3,951.05 : 5,453.37 = 2,378.84 : x
2. Step 2: Convert to fraction form
   3,951.05/5,453.37 = 2,378.84/x
3. Step 3: Cross multiply
   3,951.05x = 5,453.37 × 2,378.84
4. Step 4: Simplify right side
   3,951.05x = 12,972,667.42
5. Step 5: Solve for x
   x = 12,972,667.42/3,951.05
6. Step 6: Final answer
   x = 3,283.35