Finding the Fourth Proportional to 2,067.50, 3,100.64 and 606.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,067.50 : 3,100.64 = 606.31 : x
2. Step 2: Convert to fraction form
   2,067.50/3,100.64 = 606.31/x
3. Step 3: Cross multiply
   2,067.50x = 3,100.64 × 606.31
4. Step 4: Simplify right side
   2,067.50x = 1,879,949.04
5. Step 5: Solve for x
   x = 1,879,949.04/2,067.50
6. Step 6: Final answer
   x = 909.29