Finding the Fourth Proportional to 2,017.50, 3,025.97 and 785.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,017.50 : 3,025.97 = 785.28 : x
2. Step 2: Convert to fraction form
   2,017.50/3,025.97 = 785.28/x
3. Step 3: Cross multiply
   2,017.50x = 3,025.97 × 785.28
4. Step 4: Simplify right side
   2,017.50x = 2,376,233.72
5. Step 5: Solve for x
   x = 2,376,233.72/2,017.50
6. Step 6: Final answer
   x = 1,177.81