Finding the Fourth Proportional to 2,057,079.54, 3,085,023.50 and 617,704.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,057,079.54 : 3,085,023.50 = 617,704.78 : x
2. Step 2: Convert to fraction form
   2,057,079.54/3,085,023.50 = 617,704.78/x
3. Step 3: Cross multiply
   2,057,079.54x = 3,085,023.50 × 617,704.78
4. Step 4: Simplify right side
   2,057,079.54x = 1,905,633,751,561.25
5. Step 5: Solve for x
   x = 1,905,633,751,561.25/2,057,079.54
6. Step 6: Final answer
   x = 926,378.25