Finding the Fourth Proportional to 3,678.48, 5,503.98 and 2,192.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,678.48 : 5,503.98 = 2,192.28 : x
2. Step 2: Convert to fraction form
   3,678.48/5,503.98 = 2,192.28/x
3. Step 3: Cross multiply
   3,678.48x = 5,503.98 × 2,192.28
4. Step 4: Simplify right side
   3,678.48x = 12,066,265.27
5. Step 5: Solve for x
   x = 12,066,265.27/3,678.48
6. Step 6: Final answer
   x = 3,280.23