Finding the Fourth Proportional to 2,218.86, 3,059.18 and 1,819.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,218.86 : 3,059.18 = 1,819.05 : x
2. Step 2: Convert to fraction form
   2,218.86/3,059.18 = 1,819.05/x
3. Step 3: Cross multiply
   2,218.86x = 3,059.18 × 1,819.05
4. Step 4: Simplify right side
   2,218.86x = 5,564,801.38
5. Step 5: Solve for x
   x = 5,564,801.38/2,218.86
6. Step 6: Final answer
   x = 2,507.96