Finding the Fourth Proportional to 2,810,223.28, 4,215,345.72 and 680,303.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,810,223.28 : 4,215,345.72 = 680,303.98 : x
2. Step 2: Convert to fraction form
   2,810,223.28/4,215,345.72 = 680,303.98/x
3. Step 3: Cross multiply
   2,810,223.28x = 4,215,345.72 × 680,303.98
4. Step 4: Simplify right side
   2,810,223.28x = 2,867,716,470,391.97
5. Step 5: Solve for x
   x = 2,867,716,470,391.97/2,810,223.28
6. Step 6: Final answer
   x = 1,020,458.58