Finding the Fourth Proportional to 2,485.72, 3,727.12 and 1,023.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,485.72 : 3,727.12 = 1,023.12 : x
2. Step 2: Convert to fraction form
   2,485.72/3,727.12 = 1,023.12/x
3. Step 3: Cross multiply
   2,485.72x = 3,727.12 × 1,023.12
4. Step 4: Simplify right side
   2,485.72x = 3,813,291.01
5. Step 5: Solve for x
   x = 3,813,291.01/2,485.72
6. Step 6: Final answer
   x = 1,534.08