Finding the Fourth Proportional to 2,147.75, 2,964.37 and 1,308.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,147.75 : 2,964.37 = 1,308.73 : x
2. Step 2: Convert to fraction form
   2,147.75/2,964.37 = 1,308.73/x
3. Step 3: Cross multiply
   2,147.75x = 2,964.37 × 1,308.73
4. Step 4: Simplify right side
   2,147.75x = 3,879,559.95
5. Step 5: Solve for x
   x = 3,879,559.95/2,147.75
6. Step 6: Final answer
   x = 1,806.34