Finding the Fourth Proportional to 1,162.49, 1,604.22 and 631.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,162.49 : 1,604.22 = 631.37 : x
2. Step 2: Convert to fraction form
   1,162.49/1,604.22 = 631.37/x
3. Step 3: Cross multiply
   1,162.49x = 1,604.22 × 631.37
4. Step 4: Simplify right side
   1,162.49x = 1,012,856.38
5. Step 5: Solve for x
   x = 1,012,856.38/1,162.49
6. Step 6: Final answer
   x = 871.28