Finding the Fourth Proportional to 2,641.85, 3,963.42 and 793.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,641.85 : 3,963.42 = 793.00 : x
2. Step 2: Convert to fraction form
   2,641.85/3,963.42 = 793.00/x
3. Step 3: Cross multiply
   2,641.85x = 3,963.42 × 793.00
4. Step 4: Simplify right side
   2,641.85x = 3,142,972.24
5. Step 5: Solve for x
   x = 3,142,972.24/2,641.85
6. Step 6: Final answer
   x = 1,189.69