Finding the Fourth Proportional to 3,061.15, 4,224.39 and 1,663.90

Step by Step Solution

1. Step 1: Write the proportion equation
   3,061.15 : 4,224.39 = 1,663.90 : x
2. Step 2: Convert to fraction form
   3,061.15/4,224.39 = 1,663.90/x
3. Step 3: Cross multiply
   3,061.15x = 4,224.39 × 1,663.90
4. Step 4: Simplify right side
   3,061.15x = 7,028,962.52
5. Step 5: Solve for x
   x = 7,028,962.52/3,061.15
6. Step 6: Final answer
   x = 2,296.18