Finding the Fourth Proportional to 2,150.48, 2,965.99 and 1,442.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,150.48 : 2,965.99 = 1,442.09 : x
2. Step 2: Convert to fraction form
   2,150.48/2,965.99 = 1,442.09/x
3. Step 3: Cross multiply
   2,150.48x = 2,965.99 × 1,442.09
4. Step 4: Simplify right side
   2,150.48x = 4,277,224.52
5. Step 5: Solve for x
   x = 4,277,224.52/2,150.48
6. Step 6: Final answer
   x = 1,988.96