Finding the Fourth Proportional to 2,018.14, 2,783.37 and 1,422.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.14 : 2,783.37 = 1,422.58 : x
2. Step 2: Convert to fraction form
   2,018.14/2,783.37 = 1,422.58/x
3. Step 3: Cross multiply
   2,018.14x = 2,783.37 × 1,422.58
4. Step 4: Simplify right side
   2,018.14x = 3,959,566.49
5. Step 5: Solve for x
   x = 3,959,566.49/2,018.14
6. Step 6: Final answer
   x = 1,961.99