Finding the Fourth Proportional to 2,642.67, 3,962.79 and 1,083.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,642.67 : 3,962.79 = 1,083.42 : x
2. Step 2: Convert to fraction form
   2,642.67/3,962.79 = 1,083.42/x
3. Step 3: Cross multiply
   2,642.67x = 3,962.79 × 1,083.42
4. Step 4: Simplify right side
   2,642.67x = 4,293,365.94
5. Step 5: Solve for x
   x = 4,293,365.94/2,642.67
6. Step 6: Final answer
   x = 1,624.63