Finding the Fourth Proportional to 1,156.15, 1,595.59 and 658.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,156.15 : 1,595.59 = 658.68 : x
2. Step 2: Convert to fraction form
   1,156.15/1,595.59 = 658.68/x
3. Step 3: Cross multiply
   1,156.15x = 1,595.59 × 658.68
4. Step 4: Simplify right side
   1,156.15x = 1,050,983.22
5. Step 5: Solve for x
   x = 1,050,983.22/1,156.15
6. Step 6: Final answer
   x = 909.04