Finding the Fourth Proportional to 3,061.50, 4,224.89 and 1,664.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,061.50 : 4,224.89 = 1,664.25 : x
2. Step 2: Convert to fraction form
   3,061.50/4,224.89 = 1,664.25/x
3. Step 3: Cross multiply
   3,061.50x = 4,224.89 × 1,664.25
4. Step 4: Simplify right side
   3,061.50x = 7,031,264.86
5. Step 5: Solve for x
   x = 7,031,264.86/3,061.50
6. Step 6: Final answer
   x = 2,296.67