Finding the Fourth Proportional to 2,091.88, 3,137.37 and 630.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,091.88 : 3,137.37 = 630.73 : x
2. Step 2: Convert to fraction form
   2,091.88/3,137.37 = 630.73/x
3. Step 3: Cross multiply
   2,091.88x = 3,137.37 × 630.73
4. Step 4: Simplify right side
   2,091.88x = 1,978,833.38
5. Step 5: Solve for x
   x = 1,978,833.38/2,091.88
6. Step 6: Final answer
   x = 945.96