Finding the Fourth Proportional to 1,819.80, 2,730.18 and 942.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,819.80 : 2,730.18 = 942.78 : x
2. Step 2: Convert to fraction form
   1,819.80/2,730.18 = 942.78/x
3. Step 3: Cross multiply
   1,819.80x = 2,730.18 × 942.78
4. Step 4: Simplify right side
   1,819.80x = 2,573,959.10
5. Step 5: Solve for x
   x = 2,573,959.10/1,819.80
6. Step 6: Final answer
   x = 1,414.42