Finding the Fourth Proportional to 1,026,976.06, 1,540,604.22 and 427,797.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,026,976.06 : 1,540,604.22 = 427,797.10 : x
2. Step 2: Convert to fraction form
   1,026,976.06/1,540,604.22 = 427,797.10/x
3. Step 3: Cross multiply
   1,026,976.06x = 1,540,604.22 × 427,797.10
4. Step 4: Simplify right side
   1,026,976.06x = 659,066,017,563.76
5. Step 5: Solve for x
   x = 659,066,017,563.76/1,026,976.06
6. Step 6: Final answer
   x = 641,754.02