Finding the Fourth Proportional to 1,983.89, 2,737.61 and 1,144.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,983.89 : 2,737.61 = 1,144.61 : x
2. Step 2: Convert to fraction form
   1,983.89/2,737.61 = 1,144.61/x
3. Step 3: Cross multiply
   1,983.89x = 2,737.61 × 1,144.61
4. Step 4: Simplify right side
   1,983.89x = 3,133,484.96
5. Step 5: Solve for x
   x = 3,133,484.96/1,983.89
6. Step 6: Final answer
   x = 1,579.47