Finding the Fourth Proportional to 2,576.76, 3,557.30 and 2,016.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,576.76 : 3,557.30 = 2,016.03 : x
2. Step 2: Convert to fraction form
   2,576.76/3,557.30 = 2,016.03/x
3. Step 3: Cross multiply
   2,576.76x = 3,557.30 × 2,016.03
4. Step 4: Simplify right side
   2,576.76x = 7,171,623.52
5. Step 5: Solve for x
   x = 7,171,623.52/2,576.76
6. Step 6: Final answer
   x = 2,783.20