Finding the Fourth Proportional to 2,810,587.88, 4,215,867.72 and 680,671.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,810,587.88 : 4,215,867.72 = 680,671.94 : x
2. Step 2: Convert to fraction form
   2,810,587.88/4,215,867.72 = 680,671.94/x
3. Step 3: Cross multiply
   2,810,587.88x = 4,215,867.72 × 680,671.94
4. Step 4: Simplify right side
   2,810,587.88x = 2,869,622,859,755.78
5. Step 5: Solve for x
   x = 2,869,622,859,755.78/2,810,587.88
6. Step 6: Final answer
   x = 1,021,004.50