Finding the Fourth Proportional to 2,097.91, 3,147.18 and 711.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,097.91 : 3,147.18 = 711.37 : x
2. Step 2: Convert to fraction form
   2,097.91/3,147.18 = 711.37/x
3. Step 3: Cross multiply
   2,097.91x = 3,147.18 × 711.37
4. Step 4: Simplify right side
   2,097.91x = 2,238,809.44
5. Step 5: Solve for x
   x = 2,238,809.44/2,097.91
6. Step 6: Final answer
   x = 1,067.16