Finding the Fourth Proportional to 2,658.05, 3,667.49 and 1,538.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,658.05 : 3,667.49 = 1,538.95 : x
2. Step 2: Convert to fraction form
   2,658.05/3,667.49 = 1,538.95/x
3. Step 3: Cross multiply
   2,658.05x = 3,667.49 × 1,538.95
4. Step 4: Simplify right side
   2,658.05x = 5,644,083.74
5. Step 5: Solve for x
   x = 5,644,083.74/2,658.05
6. Step 6: Final answer
   x = 2,123.39