Finding the Fourth Proportional to 1,928.79, 2,661.72 and 1,044.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,928.79 : 2,661.72 = 1,044.61 : x
2. Step 2: Convert to fraction form
   1,928.79/2,661.72 = 1,044.61/x
3. Step 3: Cross multiply
   1,928.79x = 2,661.72 × 1,044.61
4. Step 4: Simplify right side
   1,928.79x = 2,780,459.33
5. Step 5: Solve for x
   x = 2,780,459.33/1,928.79
6. Step 6: Final answer
   x = 1,441.56