Finding the Fourth Proportional to 2,525.72, 3,484.36 and 1,581.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,525.72 : 3,484.36 = 1,581.12 : x
2. Step 2: Convert to fraction form
   2,525.72/3,484.36 = 1,581.12/x
3. Step 3: Cross multiply
   2,525.72x = 3,484.36 × 1,581.12
4. Step 4: Simplify right side
   2,525.72x = 5,509,191.28
5. Step 5: Solve for x
   x = 5,509,191.28/2,525.72
6. Step 6: Final answer
   x = 2,181.24