Finding the Fourth Proportional to 1,155.24, 1,594.42 and 657.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,155.24 : 1,594.42 = 657.88 : x
2. Step 2: Convert to fraction form
   1,155.24/1,594.42 = 657.88/x
3. Step 3: Cross multiply
   1,155.24x = 1,594.42 × 657.88
4. Step 4: Simplify right side
   1,155.24x = 1,048,945.39
5. Step 5: Solve for x
   x = 1,048,945.39/1,155.24
6. Step 6: Final answer
   x = 907.99