Finding the Fourth Proportional to 2,520.64, 3,477.56 and 1,525.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,520.64 : 3,477.56 = 1,525.55 : x
2. Step 2: Convert to fraction form
   2,520.64/3,477.56 = 1,525.55/x
3. Step 3: Cross multiply
   2,520.64x = 3,477.56 × 1,525.55
4. Step 4: Simplify right side
   2,520.64x = 5,305,184.03
5. Step 5: Solve for x
   x = 5,305,184.03/2,520.64
6. Step 6: Final answer
   x = 2,104.70