Finding the Fourth Proportional to 3,061.55, 4,224.91 and 1,664.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,061.55 : 4,224.91 = 1,664.30 : x
2. Step 2: Convert to fraction form
   3,061.55/4,224.91 = 1,664.30/x
3. Step 3: Cross multiply
   3,061.55x = 4,224.91 × 1,664.30
4. Step 4: Simplify right side
   3,061.55x = 7,031,488.27
5. Step 5: Solve for x
   x = 7,031,488.27/3,061.55
6. Step 6: Final answer
   x = 2,296.71