Finding the Fourth Proportional to 2,419.28, 3,633.72 and 2,072.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,419.28 : 3,633.72 = 2,072.48 : x
2. Step 2: Convert to fraction form
   2,419.28/3,633.72 = 2,072.48/x
3. Step 3: Cross multiply
   2,419.28x = 3,633.72 × 2,072.48
4. Step 4: Simplify right side
   2,419.28x = 7,530,812.03
5. Step 5: Solve for x
   x = 7,530,812.03/2,419.28
6. Step 6: Final answer
   x = 3,112.83