Finding the Fourth Proportional to 2,174,671.72, 3,262,093.98 and 678,763.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,174,671.72 : 3,262,093.98 = 678,763.72 : x
2. Step 2: Convert to fraction form
   2,174,671.72/3,262,093.98 = 678,763.72/x
3. Step 3: Cross multiply
   2,174,671.72x = 3,262,093.98 × 678,763.72
4. Step 4: Simplify right side
   2,174,671.72x = 2,214,191,044,854.41
5. Step 5: Solve for x
   x = 2,214,191,044,854.41/2,174,671.72
6. Step 6: Final answer
   x = 1,018,172.55