Finding the Fourth Proportional to 2,089.76, 2,883.78 and 1,249.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,089.76 : 2,883.78 = 1,249.96 : x
2. Step 2: Convert to fraction form
   2,089.76/2,883.78 = 1,249.96/x
3. Step 3: Cross multiply
   2,089.76x = 2,883.78 × 1,249.96
4. Step 4: Simplify right side
   2,089.76x = 3,604,609.65
5. Step 5: Solve for x
   x = 3,604,609.65/2,089.76
6. Step 6: Final answer
   x = 1,724.89