Finding the Fourth Proportional to 1,343.25, 1,854.09 and 819.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,343.25 : 1,854.09 = 819.18 : x
2. Step 2: Convert to fraction form
   1,343.25/1,854.09 = 819.18/x
3. Step 3: Cross multiply
   1,343.25x = 1,854.09 × 819.18
4. Step 4: Simplify right side
   1,343.25x = 1,518,833.45
5. Step 5: Solve for x
   x = 1,518,833.45/1,343.25
6. Step 6: Final answer
   x = 1,130.72