Finding the Fourth Proportional to 1,665.54, 2,483.20 and 1,622.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.54 : 2,483.20 = 1,622.25 : x
2. Step 2: Convert to fraction form
   1,665.54/2,483.20 = 1,622.25/x
3. Step 3: Cross multiply
   1,665.54x = 2,483.20 × 1,622.25
4. Step 4: Simplify right side
   1,665.54x = 4,028,371.20
5. Step 5: Solve for x
   x = 4,028,371.20/1,665.54
6. Step 6: Final answer
   x = 2,418.66