Finding the Fourth Proportional to 2,575.76, 3,865.69 and 1,016.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,575.76 : 3,865.69 = 1,016.16 : x
2. Step 2: Convert to fraction form
   2,575.76/3,865.69 = 1,016.16/x
3. Step 3: Cross multiply
   2,575.76x = 3,865.69 × 1,016.16
4. Step 4: Simplify right side
   2,575.76x = 3,928,135.14
5. Step 5: Solve for x
   x = 3,928,135.14/2,575.76
6. Step 6: Final answer
   x = 1,525.04