Finding the Fourth Proportional to 1,162,769.67, 1,604,261.50 and 678,985.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,162,769.67 : 1,604,261.50 = 678,985.83 : x
2. Step 2: Convert to fraction form
   1,162,769.67/1,604,261.50 = 678,985.83/x
3. Step 3: Cross multiply
   1,162,769.67x = 1,604,261.50 × 678,985.83
4. Step 4: Simplify right side
   1,162,769.67x = 1,089,270,826,114.55
5. Step 5: Solve for x
   x = 1,089,270,826,114.55/1,162,769.67
6. Step 6: Final answer
   x = 936,789.85