Finding the Fourth Proportional to 2,642.33, 3,962.64 and 793.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,642.33 : 3,962.64 = 793.10 : x
2. Step 2: Convert to fraction form
   2,642.33/3,962.64 = 793.10/x
3. Step 3: Cross multiply
   2,642.33x = 3,962.64 × 793.10
4. Step 4: Simplify right side
   2,642.33x = 3,142,769.78
5. Step 5: Solve for x
   x = 3,142,769.78/2,642.33
6. Step 6: Final answer
   x = 1,189.39