Finding the Fourth Proportional to 2,018.50, 2,768.15 and 1,934.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.50 : 2,768.15 = 1,934.31 : x
2. Step 2: Convert to fraction form
   2,018.50/2,768.15 = 1,934.31/x
3. Step 3: Cross multiply
   2,018.50x = 2,768.15 × 1,934.31
4. Step 4: Simplify right side
   2,018.50x = 5,354,460.91
5. Step 5: Solve for x
   x = 5,354,460.91/2,018.50
6. Step 6: Final answer
   x = 2,652.69