Finding the Fourth Proportional to 2,808.72, 3,877.60 and 2,525.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,808.72 : 3,877.60 = 2,525.04 : x
2. Step 2: Convert to fraction form
   2,808.72/3,877.60 = 2,525.04/x
3. Step 3: Cross multiply
   2,808.72x = 3,877.60 × 2,525.04
4. Step 4: Simplify right side
   2,808.72x = 9,791,095.10
5. Step 5: Solve for x
   x = 9,791,095.10/2,808.72
6. Step 6: Final answer
   x = 3,485.96