Finding the Fourth Proportional to 3,485.40, 5,224.56 and 2,092.21

Step by Step Solution

1. Step 1: Write the proportion equation
   3,485.40 : 5,224.56 = 2,092.21 : x
2. Step 2: Convert to fraction form
   3,485.40/5,224.56 = 2,092.21/x
3. Step 3: Cross multiply
   3,485.40x = 5,224.56 × 2,092.21
4. Step 4: Simplify right side
   3,485.40x = 10,930,850.55
5. Step 5: Solve for x
   x = 10,930,850.55/3,485.40
6. Step 6: Final answer
   x = 3,136.19