Finding the Fourth Proportional to 3,061.56, 4,224.96 and 1,664.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,061.56 : 4,224.96 = 1,664.31 : x
2. Step 2: Convert to fraction form
   3,061.56/4,224.96 = 1,664.31/x
3. Step 3: Cross multiply
   3,061.56x = 4,224.96 × 1,664.31
4. Step 4: Simplify right side
   3,061.56x = 7,031,659.02
5. Step 5: Solve for x
   x = 7,031,659.02/3,061.56
6. Step 6: Final answer
   x = 2,296.75