Finding the Fourth Proportional to 2,028.69, 3,043.35 and 712.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,028.69 : 3,043.35 = 712.81 : x
2. Step 2: Convert to fraction form
   2,028.69/3,043.35 = 712.81/x
3. Step 3: Cross multiply
   2,028.69x = 3,043.35 × 712.81
4. Step 4: Simplify right side
   2,028.69x = 2,169,322.71
5. Step 5: Solve for x
   x = 2,169,322.71/2,028.69
6. Step 6: Final answer
   x = 1,069.32