Finding the Fourth Proportional to 1,342.94, 1,853.46 and 819.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,342.94 : 1,853.46 = 819.27 : x
2. Step 2: Convert to fraction form
   1,342.94/1,853.46 = 819.27/x
3. Step 3: Cross multiply
   1,342.94x = 1,853.46 × 819.27
4. Step 4: Simplify right side
   1,342.94x = 1,518,486.76
5. Step 5: Solve for x
   x = 1,518,486.76/1,342.94
6. Step 6: Final answer
   x = 1,130.72