Finding the Fourth Proportional to 1,320.06, 1,821.78 and 760.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,320.06 : 1,821.78 = 760.56 : x
2. Step 2: Convert to fraction form
   1,320.06/1,821.78 = 760.56/x
3. Step 3: Cross multiply
   1,320.06x = 1,821.78 × 760.56
4. Step 4: Simplify right side
   1,320.06x = 1,385,573.00
5. Step 5: Solve for x
   x = 1,385,573.00/1,320.06
6. Step 6: Final answer
   x = 1,049.63