Finding the Fourth Proportional to 1,320.03, 1,821.89 and 760.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,320.03 : 1,821.89 = 760.73 : x
2. Step 2: Convert to fraction form
   1,320.03/1,821.89 = 760.73/x
3. Step 3: Cross multiply
   1,320.03x = 1,821.89 × 760.73
4. Step 4: Simplify right side
   1,320.03x = 1,385,959.17
5. Step 5: Solve for x
   x = 1,385,959.17/1,320.03
6. Step 6: Final answer
   x = 1,049.95