Finding the Fourth Proportional to 3,505.89, 4,838.46 and 2,620.16

Step by Step Solution

1. Step 1: Write the proportion equation
   3,505.89 : 4,838.46 = 2,620.16 : x
2. Step 2: Convert to fraction form
   3,505.89/4,838.46 = 2,620.16/x
3. Step 3: Cross multiply
   3,505.89x = 4,838.46 × 2,620.16
4. Step 4: Simplify right side
   3,505.89x = 12,677,515.16
5. Step 5: Solve for x
   x = 12,677,515.16/3,505.89
6. Step 6: Final answer
   x = 3,616.06