Finding the Fourth Proportional to 851.86, 1,174.89 and 540.82

Step by Step Solution

1. Step 1: Write the proportion equation
   851.86 : 1,174.89 = 540.82 : x
2. Step 2: Convert to fraction form
   851.86/1,174.89 = 540.82/x
3. Step 3: Cross multiply
   851.86x = 1,174.89 × 540.82
4. Step 4: Simplify right side
   851.86x = 635,404.01
5. Step 5: Solve for x
   x = 635,404.01/851.86
6. Step 6: Final answer
   x = 745.90