Finding the Fourth Proportional to 773,559.72, 1,160,395.47 and 323,828.28

Step by Step Solution

1. Step 1: Write the proportion equation
   773,559.72 : 1,160,395.47 = 323,828.28 : x
2. Step 2: Convert to fraction form
   773,559.72/1,160,395.47 = 323,828.28/x
3. Step 3: Cross multiply
   773,559.72x = 1,160,395.47 × 323,828.28
4. Step 4: Simplify right side
   773,559.72x = 375,768,869,169.89
5. Step 5: Solve for x
   x = 375,768,869,169.89/773,559.72
6. Step 6: Final answer
   x = 485,765.82