Finding the Fourth Proportional to 2,014.72, 2,780.27 and 1,130.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,014.72 : 2,780.27 = 1,130.55 : x
2. Step 2: Convert to fraction form
   2,014.72/2,780.27 = 1,130.55/x
3. Step 3: Cross multiply
   2,014.72x = 2,780.27 × 1,130.55
4. Step 4: Simplify right side
   2,014.72x = 3,143,234.25
5. Step 5: Solve for x
   x = 3,143,234.25/2,014.72
6. Step 6: Final answer
   x = 1,560.13