Finding the Fourth Proportional to 1,806.72, 2,493.25 and 1,020.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,806.72 : 2,493.25 = 1,020.75 : x
2. Step 2: Convert to fraction form
   1,806.72/2,493.25 = 1,020.75/x
3. Step 3: Cross multiply
   1,806.72x = 2,493.25 × 1,020.75
4. Step 4: Simplify right side
   1,806.72x = 2,544,984.94
5. Step 5: Solve for x
   x = 2,544,984.94/1,806.72
6. Step 6: Final answer
   x = 1,408.62