Finding the Fourth Proportional to 3,952.72, 5,454.78 and 2,184.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,952.72 : 5,454.78 = 2,184.34 : x
2. Step 2: Convert to fraction form
   3,952.72/5,454.78 = 2,184.34/x
3. Step 3: Cross multiply
   3,952.72x = 5,454.78 × 2,184.34
4. Step 4: Simplify right side
   3,952.72x = 11,915,094.15
5. Step 5: Solve for x
   x = 11,915,094.15/3,952.72
6. Step 6: Final answer
   x = 3,014.40