Finding the Fourth Proportional to 2,144.93, 2,959.97 and 1,200.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,144.93 : 2,959.97 = 1,200.71 : x
2. Step 2: Convert to fraction form
   2,144.93/2,959.97 = 1,200.71/x
3. Step 3: Cross multiply
   2,144.93x = 2,959.97 × 1,200.71
4. Step 4: Simplify right side
   2,144.93x = 3,554,066.98
5. Step 5: Solve for x
   x = 3,554,066.98/2,144.93
6. Step 6: Final answer
   x = 1,656.97