Finding the Fourth Proportional to 1,940.64, 2,673.38 and 1,442.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,940.64 : 2,673.38 = 1,442.42 : x
2. Step 2: Convert to fraction form
   1,940.64/2,673.38 = 1,442.42/x
3. Step 3: Cross multiply
   1,940.64x = 2,673.38 × 1,442.42
4. Step 4: Simplify right side
   1,940.64x = 3,856,136.78
5. Step 5: Solve for x
   x = 3,856,136.78/1,940.64
6. Step 6: Final answer
   x = 1,987.04