Finding the Fourth Proportional to 1,162,757.89, 1,604,245.26 and 678,974.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,162,757.89 : 1,604,245.26 = 678,974.05 : x
2. Step 2: Convert to fraction form
   1,162,757.89/1,604,245.26 = 678,974.05/x
3. Step 3: Cross multiply
   1,162,757.89x = 1,604,245.26 × 678,974.05
4. Step 4: Simplify right side
   1,162,757.89x = 1,089,240,901,375.50
5. Step 5: Solve for x
   x = 1,089,240,901,375.50/1,162,757.89
6. Step 6: Final answer
   x = 936,773.61