Finding the Fourth Proportional to 1,819.48, 2,730.20 and 723.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,819.48 : 2,730.20 = 723.86 : x
2. Step 2: Convert to fraction form
   1,819.48/2,730.20 = 723.86/x
3. Step 3: Cross multiply
   1,819.48x = 2,730.20 × 723.86
4. Step 4: Simplify right side
   1,819.48x = 1,976,282.57
5. Step 5: Solve for x
   x = 1,976,282.57/1,819.48
6. Step 6: Final answer
   x = 1,086.18