Finding the Fourth Proportional to 2,161.50, 3,243.69 and 793.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,161.50 : 3,243.69 = 793.50 : x
2. Step 2: Convert to fraction form
   2,161.50/3,243.69 = 793.50/x
3. Step 3: Cross multiply
   2,161.50x = 3,243.69 × 793.50
4. Step 4: Simplify right side
   2,161.50x = 2,573,868.02
5. Step 5: Solve for x
   x = 2,573,868.02/2,161.50
6. Step 6: Final answer
   x = 1,190.78