Finding the Fourth Proportional to 3,620.89, 4,997.61 and 2,205.04

Step by Step Solution

1. Step 1: Write the proportion equation
   3,620.89 : 4,997.61 = 2,205.04 : x
2. Step 2: Convert to fraction form
   3,620.89/4,997.61 = 2,205.04/x
3. Step 3: Cross multiply
   3,620.89x = 4,997.61 × 2,205.04
4. Step 4: Simplify right side
   3,620.89x = 11,019,931.42
5. Step 5: Solve for x
   x = 11,019,931.42/3,620.89
6. Step 6: Final answer
   x = 3,043.43