Finding the Fourth Proportional to 3,665.88, 5,058.54 and 2,488.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,665.88 : 5,058.54 = 2,488.50 : x
2. Step 2: Convert to fraction form
   3,665.88/5,058.54 = 2,488.50/x
3. Step 3: Cross multiply
   3,665.88x = 5,058.54 × 2,488.50
4. Step 4: Simplify right side
   3,665.88x = 12,588,176.79
5. Step 5: Solve for x
   x = 12,588,176.79/3,665.88
6. Step 6: Final answer
   x = 3,433.88