Finding the Fourth Proportional to 2,173.71, 3,260.76 and 712.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,173.71 : 3,260.76 = 712.83 : x
2. Step 2: Convert to fraction form
   2,173.71/3,260.76 = 712.83/x
3. Step 3: Cross multiply
   2,173.71x = 3,260.76 × 712.83
4. Step 4: Simplify right side
   2,173.71x = 2,324,367.55
5. Step 5: Solve for x
   x = 2,324,367.55/2,173.71
6. Step 6: Final answer
   x = 1,069.31