Finding the Fourth Proportional to 2,025.70, 3,045.30 and 1,663.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,025.70 : 3,045.30 = 1,663.18 : x
2. Step 2: Convert to fraction form
   2,025.70/3,045.30 = 1,663.18/x
3. Step 3: Cross multiply
   2,025.70x = 3,045.30 × 1,663.18
4. Step 4: Simplify right side
   2,025.70x = 5,064,882.05
5. Step 5: Solve for x
   x = 5,064,882.05/2,025.70
6. Step 6: Final answer
   x = 2,500.31