Finding the Fourth Proportional to 2,144.84, 2,961.06 and 1,447.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,144.84 : 2,961.06 = 1,447.16 : x
2. Step 2: Convert to fraction form
   2,144.84/2,961.06 = 1,447.16/x
3. Step 3: Cross multiply
   2,144.84x = 2,961.06 × 1,447.16
4. Step 4: Simplify right side
   2,144.84x = 4,285,127.59
5. Step 5: Solve for x
   x = 4,285,127.59/2,144.84
6. Step 6: Final answer
   x = 1,997.88