Finding the Fourth Proportional to 2,642.32, 3,962.30 and 793.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,642.32 : 3,962.30 = 793.09 : x
2. Step 2: Convert to fraction form
   2,642.32/3,962.30 = 793.09/x
3. Step 3: Cross multiply
   2,642.32x = 3,962.30 × 793.09
4. Step 4: Simplify right side
   2,642.32x = 3,142,460.51
5. Step 5: Solve for x
   x = 3,142,460.51/2,642.32
6. Step 6: Final answer
   x = 1,189.28