Finding the Fourth Proportional to 2,144.89, 2,960.01 and 1,200.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,144.89 : 2,960.01 = 1,200.67 : x
2. Step 2: Convert to fraction form
   2,144.89/2,960.01 = 1,200.67/x
3. Step 3: Cross multiply
   2,144.89x = 2,960.01 × 1,200.67
4. Step 4: Simplify right side
   2,144.89x = 3,553,995.21
5. Step 5: Solve for x
   x = 3,553,995.21/2,144.89
6. Step 6: Final answer
   x = 1,656.96