Finding the Fourth Proportional to 2,673.86, 4,011.60 and 1,212.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,673.86 : 4,011.60 = 1,212.62 : x
2. Step 2: Convert to fraction form
   2,673.86/4,011.60 = 1,212.62/x
3. Step 3: Cross multiply
   2,673.86x = 4,011.60 × 1,212.62
4. Step 4: Simplify right side
   2,673.86x = 4,864,520.27
5. Step 5: Solve for x
   x = 4,864,520.27/2,673.86
6. Step 6: Final answer
   x = 1,819.29