Finding the Fourth Proportional to 1,155.36, 1,594.37 and 658

Step by Step Solution

1. Step 1: Write the proportion equation
   1,155.36 : 1,594.37 = 658 : x
2. Step 2: Convert to fraction form
   1,155.36/1,594.37 = 658/x
3. Step 3: Cross multiply
   1,155.36x = 1,594.37 × 658
4. Step 4: Simplify right side
   1,155.36x = 1,049,095.46
5. Step 5: Solve for x
   x = 1,049,095.46/1,155.36
6. Step 6: Final answer
   x = 908.02