Finding the Fourth Proportional to 2,010.62, 3,016.89 and 712.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,010.62 : 3,016.89 = 712.70 : x
2. Step 2: Convert to fraction form
   2,010.62/3,016.89 = 712.70/x
3. Step 3: Cross multiply
   2,010.62x = 3,016.89 × 712.70
4. Step 4: Simplify right side
   2,010.62x = 2,150,137.50
5. Step 5: Solve for x
   x = 2,150,137.50/2,010.62
6. Step 6: Final answer
   x = 1,069.39