Finding the Fourth Proportional to 1,162.69, 1,604.52 and 631.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,162.69 : 1,604.52 = 631.58 : x
2. Step 2: Convert to fraction form
   1,162.69/1,604.52 = 631.58/x
3. Step 3: Cross multiply
   1,162.69x = 1,604.52 × 631.58
4. Step 4: Simplify right side
   1,162.69x = 1,013,382.74
5. Step 5: Solve for x
   x = 1,013,382.74/1,162.69
6. Step 6: Final answer
   x = 871.58