Finding the Fourth Proportional to 2,017.74, 3,015.79 and 1,819.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,017.74 : 3,015.79 = 1,819.63 : x
2. Step 2: Convert to fraction form
   2,017.74/3,015.79 = 1,819.63/x
3. Step 3: Cross multiply
   2,017.74x = 3,015.79 × 1,819.63
4. Step 4: Simplify right side
   2,017.74x = 5,487,597.78
5. Step 5: Solve for x
   x = 5,487,597.78/2,017.74
6. Step 6: Final answer
   x = 2,719.68