Finding the Fourth Proportional to 3,768.25, 5,200.20 and 2,112.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,768.25 : 5,200.20 = 2,112.25 : x
2. Step 2: Convert to fraction form
   3,768.25/5,200.20 = 2,112.25/x
3. Step 3: Cross multiply
   3,768.25x = 5,200.20 × 2,112.25
4. Step 4: Simplify right side
   3,768.25x = 10,984,122.45
5. Step 5: Solve for x
   x = 10,984,122.45/3,768.25
6. Step 6: Final answer
   x = 2,914.91