Finding the Fourth Proportional to 2,647,174, 3,970,386.06 and 849,820.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,647,174 : 3,970,386.06 = 849,820.78 : x
2. Step 2: Convert to fraction form
   2,647,174/3,970,386.06 = 849,820.78/x
3. Step 3: Cross multiply
   2,647,174x = 3,970,386.06 × 849,820.78
4. Step 4: Simplify right side
   2,647,174x = 3,374,116,578,410.33
5. Step 5: Solve for x
   x = 3,374,116,578,410.33/2,647,174
6. Step 6: Final answer
   x = 1,274,610.80