Finding the Fourth Proportional to 2,018.26, 2,784.81 and 1,272.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.26 : 2,784.81 = 1,272.34 : x
2. Step 2: Convert to fraction form
   2,018.26/2,784.81 = 1,272.34/x
3. Step 3: Cross multiply
   2,018.26x = 2,784.81 × 1,272.34
4. Step 4: Simplify right side
   2,018.26x = 3,543,225.16
5. Step 5: Solve for x
   x = 3,543,225.16/2,018.26
6. Step 6: Final answer
   x = 1,755.58