Finding the Fourth Proportional to 2,144.75, 2,960.01 and 1,260.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,144.75 : 2,960.01 = 1,260.63 : x
2. Step 2: Convert to fraction form
   2,144.75/2,960.01 = 1,260.63/x
3. Step 3: Cross multiply
   2,144.75x = 2,960.01 × 1,260.63
4. Step 4: Simplify right side
   2,144.75x = 3,731,477.41
5. Step 5: Solve for x
   x = 3,731,477.41/2,144.75
6. Step 6: Final answer
   x = 1,739.82