Finding the Fourth Proportional to 789,658.83, 1,089,729.15 and 427,082.72

Step by Step Solution

1. Step 1: Write the proportion equation
   789,658.83 : 1,089,729.15 = 427,082.72 : x
2. Step 2: Convert to fraction form
   789,658.83/1,089,729.15 = 427,082.72/x
3. Step 3: Cross multiply
   789,658.83x = 1,089,729.15 × 427,082.72
4. Step 4: Simplify right side
   789,658.83x = 465,404,483,996.64
5. Step 5: Solve for x
   x = 465,404,483,996.64/789,658.83
6. Step 6: Final answer
   x = 589,374.13