Finding the Fourth Proportional to 5,123.38, 7,683.90 and 2,003.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,123.38 : 7,683.90 = 2,003.50 : x
2. Step 2: Convert to fraction form
   5,123.38/7,683.90 = 2,003.50/x
3. Step 3: Cross multiply
   5,123.38x = 7,683.90 × 2,003.50
4. Step 4: Simplify right side
   5,123.38x = 15,394,693.65
5. Step 5: Solve for x
   x = 15,394,693.65/5,123.38
6. Step 6: Final answer
   x = 3,004.79