Finding the Fourth Proportional to 2,658.16, 3,983.73 and 2,039.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,658.16 : 3,983.73 = 2,039.50 : x
2. Step 2: Convert to fraction form
   2,658.16/3,983.73 = 2,039.50/x
3. Step 3: Cross multiply
   2,658.16x = 3,983.73 × 2,039.50
4. Step 4: Simplify right side
   2,658.16x = 8,124,817.34
5. Step 5: Solve for x
   x = 8,124,817.34/2,658.16
6. Step 6: Final answer
   x = 3,056.56