Finding the Fourth Proportional to 2,642.33, 3,963.69 and 793.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,642.33 : 3,963.69 = 793.31 : x
2. Step 2: Convert to fraction form
   2,642.33/3,963.69 = 793.31/x
3. Step 3: Cross multiply
   2,642.33x = 3,963.69 × 793.31
4. Step 4: Simplify right side
   2,642.33x = 3,144,415.10
5. Step 5: Solve for x
   x = 3,144,415.10/2,642.33
6. Step 6: Final answer
   x = 1,190.02