Finding the Fourth Proportional to 2,048.72, 3,069.12 and 1,227.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,048.72 : 3,069.12 = 1,227.64 : x
2. Step 2: Convert to fraction form
   2,048.72/3,069.12 = 1,227.64/x
3. Step 3: Cross multiply
   2,048.72x = 3,069.12 × 1,227.64
4. Step 4: Simplify right side
   2,048.72x = 3,767,774.48
5. Step 5: Solve for x
   x = 3,767,774.48/2,048.72
6. Step 6: Final answer
   x = 1,839.09