Finding the Fourth Proportional to 2,144.00, 2,958.80 and 1,259.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,144.00 : 2,958.80 = 1,259.64 : x
2. Step 2: Convert to fraction form
   2,144.00/2,958.80 = 1,259.64/x
3. Step 3: Cross multiply
   2,144.00x = 2,958.80 × 1,259.64
4. Step 4: Simplify right side
   2,144.00x = 3,727,016.53
5. Step 5: Solve for x
   x = 3,727,016.53/2,144.00
6. Step 6: Final answer
   x = 1,738.35