Finding the Fourth Proportional to 1,317.94, 1,818.77 and 758.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,317.94 : 1,818.77 = 758.42 : x
2. Step 2: Convert to fraction form
   1,317.94/1,818.77 = 758.42/x
3. Step 3: Cross multiply
   1,317.94x = 1,818.77 × 758.42
4. Step 4: Simplify right side
   1,317.94x = 1,379,391.54
5. Step 5: Solve for x
   x = 1,379,391.54/1,317.94
6. Step 6: Final answer
   x = 1,046.63