Finding the Fourth Proportional to 1,317.81, 1,818.32 and 793.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,317.81 : 1,818.32 = 793.88 : x
2. Step 2: Convert to fraction form
   1,317.81/1,818.32 = 793.88/x
3. Step 3: Cross multiply
   1,317.81x = 1,818.32 × 793.88
4. Step 4: Simplify right side
   1,317.81x = 1,443,514.82
5. Step 5: Solve for x
   x = 1,443,514.82/1,317.81
6. Step 6: Final answer
   x = 1,095.39