Finding the Fourth Proportional to 3,061.36, 4,224.69 and 1,664.11

Step by Step Solution

1. Step 1: Write the proportion equation
   3,061.36 : 4,224.69 = 1,664.11 : x
2. Step 2: Convert to fraction form
   3,061.36/4,224.69 = 1,664.11/x
3. Step 3: Cross multiply
   3,061.36x = 4,224.69 × 1,664.11
4. Step 4: Simplify right side
   3,061.36x = 7,030,348.88
5. Step 5: Solve for x
   x = 7,030,348.88/3,061.36
6. Step 6: Final answer
   x = 2,296.48