Finding the Fourth Proportional to 2,052,777.50, 3,078,842.78 and 686,540.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,052,777.50 : 3,078,842.78 = 686,540.80 : x
2. Step 2: Convert to fraction form
   2,052,777.50/3,078,842.78 = 686,540.80/x
3. Step 3: Cross multiply
   2,052,777.50x = 3,078,842.78 × 686,540.80
4. Step 4: Simplify right side
   2,052,777.50x = 2,113,751,185,255.42
5. Step 5: Solve for x
   x = 2,113,751,185,255.42/2,052,777.50
6. Step 6: Final answer
   x = 1,029,703.02