Finding the Fourth Proportional to 2,150.57, 2,968.83 and 1,442.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,150.57 : 2,968.83 = 1,442.16 : x
2. Step 2: Convert to fraction form
   2,150.57/2,968.83 = 1,442.16/x
3. Step 3: Cross multiply
   2,150.57x = 2,968.83 × 1,442.16
4. Step 4: Simplify right side
   2,150.57x = 4,281,521.58
5. Step 5: Solve for x
   x = 4,281,521.58/2,150.57
6. Step 6: Final answer
   x = 1,990.88