Finding the Fourth Proportional to 2,144.03, 2,956.78 and 1,397.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,144.03 : 2,956.78 = 1,397.61 : x
2. Step 2: Convert to fraction form
   2,144.03/2,956.78 = 1,397.61/x
3. Step 3: Cross multiply
   2,144.03x = 2,956.78 × 1,397.61
4. Step 4: Simplify right side
   2,144.03x = 4,132,429.19
5. Step 5: Solve for x
   x = 4,132,429.19/2,144.03
6. Step 6: Final answer
   x = 1,927.41