Finding the Fourth Proportional to 1,168.57, 1,611.92 and 696.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,168.57 : 1,611.92 = 696.16 : x
2. Step 2: Convert to fraction form
   1,168.57/1,611.92 = 696.16/x
3. Step 3: Cross multiply
   1,168.57x = 1,611.92 × 696.16
4. Step 4: Simplify right side
   1,168.57x = 1,122,142.69
5. Step 5: Solve for x
   x = 1,122,142.69/1,168.57
6. Step 6: Final answer
   x = 960.27