Finding the Fourth Proportional to 2,014.96, 2,780.69 and 1,131.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,014.96 : 2,780.69 = 1,131.05 : x
2. Step 2: Convert to fraction form
   2,014.96/2,780.69 = 1,131.05/x
3. Step 3: Cross multiply
   2,014.96x = 2,780.69 × 1,131.05
4. Step 4: Simplify right side
   2,014.96x = 3,145,099.42
5. Step 5: Solve for x
   x = 3,145,099.42/2,014.96
6. Step 6: Final answer
   x = 1,560.87