Finding the Fourth Proportional to 2,144.84, 2,960.02 and 1,200.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,144.84 : 2,960.02 = 1,200.72 : x
2. Step 2: Convert to fraction form
   2,144.84/2,960.02 = 1,200.72/x
3. Step 3: Cross multiply
   2,144.84x = 2,960.02 × 1,200.72
4. Step 4: Simplify right side
   2,144.84x = 3,554,155.21
5. Step 5: Solve for x
   x = 3,554,155.21/2,144.84
6. Step 6: Final answer
   x = 1,657.07