Finding the Fourth Proportional to 3,920.72, 5,411.40 and 2,242.04

Step by Step Solution

1. Step 1: Write the proportion equation
   3,920.72 : 5,411.40 = 2,242.04 : x
2. Step 2: Convert to fraction form
   3,920.72/5,411.40 = 2,242.04/x
3. Step 3: Cross multiply
   3,920.72x = 5,411.40 × 2,242.04
4. Step 4: Simplify right side
   3,920.72x = 12,132,575.26
5. Step 5: Solve for x
   x = 12,132,575.26/3,920.72
6. Step 6: Final answer
   x = 3,094.48