Finding the Fourth Proportional to 1,137.75, 1,569.98 and 696.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,137.75 : 1,569.98 = 696.10 : x
2. Step 2: Convert to fraction form
   1,137.75/1,569.98 = 696.10/x
3. Step 3: Cross multiply
   1,137.75x = 1,569.98 × 696.10
4. Step 4: Simplify right side
   1,137.75x = 1,092,855.23
5. Step 5: Solve for x
   x = 1,092,855.23/1,137.75
6. Step 6: Final answer
   x = 960.54