Finding the Fourth Proportional to 2,834.50, 4,250.72 and 985.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,834.50 : 4,250.72 = 985.12 : x
2. Step 2: Convert to fraction form
   2,834.50/4,250.72 = 985.12/x
3. Step 3: Cross multiply
   2,834.50x = 4,250.72 × 985.12
4. Step 4: Simplify right side
   2,834.50x = 4,187,469.29
5. Step 5: Solve for x
   x = 4,187,469.29/2,834.50
6. Step 6: Final answer
   x = 1,477.32