Finding the Fourth Proportional to 2,011.59, 3,016.77 and 712.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,011.59 : 3,016.77 = 712.75 : x
2. Step 2: Convert to fraction form
   2,011.59/3,016.77 = 712.75/x
3. Step 3: Cross multiply
   2,011.59x = 3,016.77 × 712.75
4. Step 4: Simplify right side
   2,011.59x = 2,150,202.82
5. Step 5: Solve for x
   x = 2,150,202.82/2,011.59
6. Step 6: Final answer
   x = 1,068.91