Finding the Fourth Proportional to 1,150.23, 1,725.70 and 688.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.23 : 1,725.70 = 688.53 : x
2. Step 2: Convert to fraction form
   1,150.23/1,725.70 = 688.53/x
3. Step 3: Cross multiply
   1,150.23x = 1,725.70 × 688.53
4. Step 4: Simplify right side
   1,150.23x = 1,188,196.22
5. Step 5: Solve for x
   x = 1,188,196.22/1,150.23
6. Step 6: Final answer
   x = 1,033.01