Finding the Fourth Proportional to 1,623.98, 2,256.28 and 1,604.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,623.98 : 2,256.28 = 1,604.54 : x
2. Step 2: Convert to fraction form
   1,623.98/2,256.28 = 1,604.54/x
3. Step 3: Cross multiply
   1,623.98x = 2,256.28 × 1,604.54
4. Step 4: Simplify right side
   1,623.98x = 3,620,291.51
5. Step 5: Solve for x
   x = 3,620,291.51/1,623.98
6. Step 6: Final answer
   x = 2,229.27