Finding the Fourth Proportional to 3,441.50, 5,165.18 and 2,518.91

Step by Step Solution

1. Step 1: Write the proportion equation
   3,441.50 : 5,165.18 = 2,518.91 : x
2. Step 2: Convert to fraction form
   3,441.50/5,165.18 = 2,518.91/x
3. Step 3: Cross multiply
   3,441.50x = 5,165.18 × 2,518.91
4. Step 4: Simplify right side
   3,441.50x = 13,010,623.55
5. Step 5: Solve for x
   x = 13,010,623.55/3,441.50
6. Step 6: Final answer
   x = 3,780.51