Finding the Fourth Proportional to 1,174.18, 1,761.47 and 404.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,174.18 : 1,761.47 = 404.50 : x
2. Step 2: Convert to fraction form
   1,174.18/1,761.47 = 404.50/x
3. Step 3: Cross multiply
   1,174.18x = 1,761.47 × 404.50
4. Step 4: Simplify right side
   1,174.18x = 712,514.62
5. Step 5: Solve for x
   x = 712,514.62/1,174.18
6. Step 6: Final answer
   x = 606.82