Finding the Fourth Proportional to 1,162.49, 1,604.33 and 690.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,162.49 : 1,604.33 = 690.53 : x
2. Step 2: Convert to fraction form
   1,162.49/1,604.33 = 690.53/x
3. Step 3: Cross multiply
   1,162.49x = 1,604.33 × 690.53
4. Step 4: Simplify right side
   1,162.49x = 1,107,843.73
5. Step 5: Solve for x
   x = 1,107,843.73/1,162.49
6. Step 6: Final answer
   x = 952.99