Finding the Fourth Proportional to 2,098.71, 3,146.58 and 711.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,098.71 : 3,146.58 = 711.72 : x
2. Step 2: Convert to fraction form
   2,098.71/3,146.58 = 711.72/x
3. Step 3: Cross multiply
   2,098.71x = 3,146.58 × 711.72
4. Step 4: Simplify right side
   2,098.71x = 2,239,483.92
5. Step 5: Solve for x
   x = 2,239,483.92/2,098.71
6. Step 6: Final answer
   x = 1,067.08