Finding the Fourth Proportional to 2,520.51, 3,478.03 and 1,525.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,520.51 : 3,478.03 = 1,525.42 : x
2. Step 2: Convert to fraction form
   2,520.51/3,478.03 = 1,525.42/x
3. Step 3: Cross multiply
   2,520.51x = 3,478.03 × 1,525.42
4. Step 4: Simplify right side
   2,520.51x = 5,305,456.52
5. Step 5: Solve for x
   x = 5,305,456.52/2,520.51
6. Step 6: Final answer
   x = 2,104.91