Finding the Fourth Proportional to 1,156.06, 1,595.40 and 658.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,156.06 : 1,595.40 = 658.69 : x
2. Step 2: Convert to fraction form
   1,156.06/1,595.40 = 658.69/x
3. Step 3: Cross multiply
   1,156.06x = 1,595.40 × 658.69
4. Step 4: Simplify right side
   1,156.06x = 1,050,874.03
5. Step 5: Solve for x
   x = 1,050,874.03/1,156.06
6. Step 6: Final answer
   x = 909.01