Finding the Fourth Proportional to 2,144.47, 2,959.51 and 1,200.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,144.47 : 2,959.51 = 1,200.34 : x
2. Step 2: Convert to fraction form
   2,144.47/2,959.51 = 1,200.34/x
3. Step 3: Cross multiply
   2,144.47x = 2,959.51 × 1,200.34
4. Step 4: Simplify right side
   2,144.47x = 3,552,418.23
5. Step 5: Solve for x
   x = 3,552,418.23/2,144.47
6. Step 6: Final answer
   x = 1,656.55