Finding the Fourth Proportional to 2,615.50, 3,923.82 and 1,076.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,615.50 : 3,923.82 = 1,076.50 : x
2. Step 2: Convert to fraction form
   2,615.50/3,923.82 = 1,076.50/x
3. Step 3: Cross multiply
   2,615.50x = 3,923.82 × 1,076.50
4. Step 4: Simplify right side
   2,615.50x = 4,223,992.23
5. Step 5: Solve for x
   x = 4,223,992.23/2,615.50
6. Step 6: Final answer
   x = 1,614.98