Finding the Fourth Proportional to 2,092.82, 3,139.59 and 631.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,092.82 : 3,139.59 = 631.76 : x
2. Step 2: Convert to fraction form
   2,092.82/3,139.59 = 631.76/x
3. Step 3: Cross multiply
   2,092.82x = 3,139.59 × 631.76
4. Step 4: Simplify right side
   2,092.82x = 1,983,467.38
5. Step 5: Solve for x
   x = 1,983,467.38/2,092.82
6. Step 6: Final answer
   x = 947.75