Finding the Fourth Proportional to 3,798.72, 5,238.72 and 2,914.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,798.72 : 5,238.72 = 2,914.56 : x
2. Step 2: Convert to fraction form
   3,798.72/5,238.72 = 2,914.56/x
3. Step 3: Cross multiply
   3,798.72x = 5,238.72 × 2,914.56
4. Step 4: Simplify right side
   3,798.72x = 15,268,563.76
5. Step 5: Solve for x
   x = 15,268,563.76/3,798.72
6. Step 6: Final answer
   x = 4,019.40