Finding the Fourth Proportional to 1,525.56, 2,290.23 and 1,518.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,525.56 : 2,290.23 = 1,518.54 : x
2. Step 2: Convert to fraction form
   1,525.56/2,290.23 = 1,518.54/x
3. Step 3: Cross multiply
   1,525.56x = 2,290.23 × 1,518.54
4. Step 4: Simplify right side
   1,525.56x = 3,477,805.86
5. Step 5: Solve for x
   x = 3,477,805.86/1,525.56
6. Step 6: Final answer
   x = 2,279.69