Finding the Fourth Proportional to 1,362.72, 2,040.72 and 1,224.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,362.72 : 2,040.72 = 1,224.48 : x
2. Step 2: Convert to fraction form
   1,362.72/2,040.72 = 1,224.48/x
3. Step 3: Cross multiply
   1,362.72x = 2,040.72 × 1,224.48
4. Step 4: Simplify right side
   1,362.72x = 2,498,820.83
5. Step 5: Solve for x
   x = 2,498,820.83/1,362.72
6. Step 6: Final answer
   x = 1,833.70