Finding the Fourth Proportional to 2,109.72, 3,165.75 and 793.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109.72 : 3,165.75 = 793.41 : x
2. Step 2: Convert to fraction form
   2,109.72/3,165.75 = 793.41/x
3. Step 3: Cross multiply
   2,109.72x = 3,165.75 × 793.41
4. Step 4: Simplify right side
   2,109.72x = 2,511,733.74
5. Step 5: Solve for x
   x = 2,511,733.74/2,109.72
6. Step 6: Final answer
   x = 1,190.55