Finding the Fourth Proportional to 1,291.34, 1,781.37 and 794.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,291.34 : 1,781.37 = 794.09 : x
2. Step 2: Convert to fraction form
   1,291.34/1,781.37 = 794.09/x
3. Step 3: Cross multiply
   1,291.34x = 1,781.37 × 794.09
4. Step 4: Simplify right side
   1,291.34x = 1,414,572.56
5. Step 5: Solve for x
   x = 1,414,572.56/1,291.34
6. Step 6: Final answer
   x = 1,095.43