Finding the Fourth Proportional to 1,096,196.22, 1,512,752.78 and 612,761.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096,196.22 : 1,512,752.78 = 612,761.09 : x
2. Step 2: Convert to fraction form
   1,096,196.22/1,512,752.78 = 612,761.09/x
3. Step 3: Cross multiply
   1,096,196.22x = 1,512,752.78 × 612,761.09
4. Step 4: Simplify right side
   1,096,196.22x = 926,956,036,341.47
5. Step 5: Solve for x
   x = 926,956,036,341.47/1,096,196.22
6. Step 6: Final answer
   x = 845,611.41