Finding the Fourth Proportional to 1,480.05, 2,042.48 and 816.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,480.05 : 2,042.48 = 816.89 : x
2. Step 2: Convert to fraction form
   1,480.05/2,042.48 = 816.89/x
3. Step 3: Cross multiply
   1,480.05x = 2,042.48 × 816.89
4. Step 4: Simplify right side
   1,480.05x = 1,668,477.40
5. Step 5: Solve for x
   x = 1,668,477.40/1,480.05
6. Step 6: Final answer
   x = 1,127.32