Finding the Fourth Proportional to 2,144.52, 2,959.56 and 1,619.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,144.52 : 2,959.56 = 1,619.64 : x
2. Step 2: Convert to fraction form
   2,144.52/2,959.56 = 1,619.64/x
3. Step 3: Cross multiply
   2,144.52x = 2,959.56 × 1,619.64
4. Step 4: Simplify right side
   2,144.52x = 4,793,421.76
5. Step 5: Solve for x
   x = 4,793,421.76/2,144.52
6. Step 6: Final answer
   x = 2,235.20