Finding the Fourth Proportional to 2,523.12, 3,480.90 and 1,528.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,523.12 : 3,480.90 = 1,528.48 : x
2. Step 2: Convert to fraction form
   2,523.12/3,480.90 = 1,528.48/x
3. Step 3: Cross multiply
   2,523.12x = 3,480.90 × 1,528.48
4. Step 4: Simplify right side
   2,523.12x = 5,320,486.03
5. Step 5: Solve for x
   x = 5,320,486.03/2,523.12
6. Step 6: Final answer
   x = 2,108.69