Finding the Fourth Proportional to 2,144.62, 2,959.62 and 1,200.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,144.62 : 2,959.62 = 1,200.43 : x
2. Step 2: Convert to fraction form
   2,144.62/2,959.62 = 1,200.43/x
3. Step 3: Cross multiply
   2,144.62x = 2,959.62 × 1,200.43
4. Step 4: Simplify right side
   2,144.62x = 3,552,816.64
5. Step 5: Solve for x
   x = 3,552,816.64/2,144.62
6. Step 6: Final answer
   x = 1,656.62