Finding the Fourth Proportional to 1,081.58, 1,494.52 and 819.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,081.58 : 1,494.52 = 819.14 : x
2. Step 2: Convert to fraction form
   1,081.58/1,494.52 = 819.14/x
3. Step 3: Cross multiply
   1,081.58x = 1,494.52 × 819.14
4. Step 4: Simplify right side
   1,081.58x = 1,224,211.59
5. Step 5: Solve for x
   x = 1,224,211.59/1,081.58
6. Step 6: Final answer
   x = 1,131.88