Finding the Fourth Proportional to 2,678,869.31, 4,018,857.56 and 881,860.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,678,869.31 : 4,018,857.56 = 881,860.61 : x
2. Step 2: Convert to fraction form
   2,678,869.31/4,018,857.56 = 881,860.61/x
3. Step 3: Cross multiply
   2,678,869.31x = 4,018,857.56 × 881,860.61
4. Step 4: Simplify right side
   2,678,869.31x = 3,544,072,185,002.55
5. Step 5: Solve for x
   x = 3,544,072,185,002.55/2,678,869.31
6. Step 6: Final answer
   x = 1,322,973.16