Finding the Fourth Proportional to 1,162.38, 1,603.89 and 696.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,162.38 : 1,603.89 = 696.63 : x
2. Step 2: Convert to fraction form
   1,162.38/1,603.89 = 696.63/x
3. Step 3: Cross multiply
   1,162.38x = 1,603.89 × 696.63
4. Step 4: Simplify right side
   1,162.38x = 1,117,317.89
5. Step 5: Solve for x
   x = 1,117,317.89/1,162.38
6. Step 6: Final answer
   x = 961.23