Finding the Fourth Proportional to 1,317.75, 1,818.50 and 793.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,317.75 : 1,818.50 = 793.89 : x
2. Step 2: Convert to fraction form
   1,317.75/1,818.50 = 793.89/x
3. Step 3: Cross multiply
   1,317.75x = 1,818.50 × 793.89
4. Step 4: Simplify right side
   1,317.75x = 1,443,685.00
5. Step 5: Solve for x
   x = 1,443,685.00/1,317.75
6. Step 6: Final answer
   x = 1,095.57