Finding the Fourth Proportional to 1,492.07, 2,059.04 and 819.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,492.07 : 2,059.04 = 819.89 : x
2. Step 2: Convert to fraction form
   1,492.07/2,059.04 = 819.89/x
3. Step 3: Cross multiply
   1,492.07x = 2,059.04 × 819.89
4. Step 4: Simplify right side
   1,492.07x = 1,688,171.91
5. Step 5: Solve for x
   x = 1,688,171.91/1,492.07
6. Step 6: Final answer
   x = 1,131.43