Finding the Fourth Proportional to 2,144.58, 2,958.29 and 1,260.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,144.58 : 2,958.29 = 1,260.22 : x
2. Step 2: Convert to fraction form
   2,144.58/2,958.29 = 1,260.22/x
3. Step 3: Cross multiply
   2,144.58x = 2,958.29 × 1,260.22
4. Step 4: Simplify right side
   2,144.58x = 3,728,096.22
5. Step 5: Solve for x
   x = 3,728,096.22/2,144.58
6. Step 6: Final answer
   x = 1,738.38