Finding the Fourth Proportional to 2,040.72, 2,816.28 and 1,156.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,040.72 : 2,816.28 = 1,156.76 : x
2. Step 2: Convert to fraction form
   2,040.72/2,816.28 = 1,156.76/x
3. Step 3: Cross multiply
   2,040.72x = 2,816.28 × 1,156.76
4. Step 4: Simplify right side
   2,040.72x = 3,257,760.05
5. Step 5: Solve for x
   x = 3,257,760.05/2,040.72
6. Step 6: Final answer
   x = 1,596.38