Finding the Fourth Proportional to 2,092.32, 3,138.01 and 631.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,092.32 : 3,138.01 = 631.15 : x
2. Step 2: Convert to fraction form
   2,092.32/3,138.01 = 631.15/x
3. Step 3: Cross multiply
   2,092.32x = 3,138.01 × 631.15
4. Step 4: Simplify right side
   2,092.32x = 1,980,545.59
5. Step 5: Solve for x
   x = 1,980,545.59/2,092.32
6. Step 6: Final answer
   x = 946.58