Finding the Fourth Proportional to 3,920.48, 5,410.72 and 2,242.16

Step by Step Solution

1. Step 1: Write the proportion equation
   3,920.48 : 5,410.72 = 2,242.16 : x
2. Step 2: Convert to fraction form
   3,920.48/5,410.72 = 2,242.16/x
3. Step 3: Cross multiply
   3,920.48x = 5,410.72 × 2,242.16
4. Step 4: Simplify right side
   3,920.48x = 12,131,699.96
5. Step 5: Solve for x
   x = 12,131,699.96/3,920.48
6. Step 6: Final answer
   x = 3,094.44