Finding the Fourth Proportional to 2,018.70, 2,786.00 and 1,134.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.70 : 2,786.00 = 1,134.72 : x
2. Step 2: Convert to fraction form
   2,018.70/2,786.00 = 1,134.72/x
3. Step 3: Cross multiply
   2,018.70x = 2,786.00 × 1,134.72
4. Step 4: Simplify right side
   2,018.70x = 3,161,324.25
5. Step 5: Solve for x
   x = 3,161,324.25/2,018.70
6. Step 6: Final answer
   x = 1,566.02