Finding the Fourth Proportional to 1,482.48, 2,045.73 and 819.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,482.48 : 2,045.73 = 819.30 : x
2. Step 2: Convert to fraction form
   1,482.48/2,045.73 = 819.30/x
3. Step 3: Cross multiply
   1,482.48x = 2,045.73 × 819.30
4. Step 4: Simplify right side
   1,482.48x = 1,676,066.59
5. Step 5: Solve for x
   x = 1,676,066.59/1,482.48
6. Step 6: Final answer
   x = 1,130.58