Finding the Fourth Proportional to 2,144.49, 2,959.42 and 1,200.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,144.49 : 2,959.42 = 1,200.34 : x
2. Step 2: Convert to fraction form
   2,144.49/2,959.42 = 1,200.34/x
3. Step 3: Cross multiply
   2,144.49x = 2,959.42 × 1,200.34
4. Step 4: Simplify right side
   2,144.49x = 3,552,296.51
5. Step 5: Solve for x
   x = 3,552,296.51/2,144.49
6. Step 6: Final answer
   x = 1,656.47