Finding the Fourth Proportional to 3,061.89, 4,225.41 and 1,664.64

Step by Step Solution

1. Step 1: Write the proportion equation
   3,061.89 : 4,225.41 = 1,664.64 : x
2. Step 2: Convert to fraction form
   3,061.89/4,225.41 = 1,664.64/x
3. Step 3: Cross multiply
   3,061.89x = 4,225.41 × 1,664.64
4. Step 4: Simplify right side
   3,061.89x = 7,033,786.50
5. Step 5: Solve for x
   x = 7,033,786.50/3,061.89
6. Step 6: Final answer
   x = 2,297.20