Finding the Fourth Proportional to 3,061.40, 4,224.62 and 1,664.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,061.40 : 4,224.62 = 1,664.15 : x
2. Step 2: Convert to fraction form
   3,061.40/4,224.62 = 1,664.15/x
3. Step 3: Cross multiply
   3,061.40x = 4,224.62 × 1,664.15
4. Step 4: Simplify right side
   3,061.40x = 7,030,393.05
5. Step 5: Solve for x
   x = 7,030,393.05/3,061.40
6. Step 6: Final answer
   x = 2,296.46