Finding the Fourth Proportional to 2,678,870.31, 4,018,859.06 and 881,861.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,678,870.31 : 4,018,859.06 = 881,861.61 : x
2. Step 2: Convert to fraction form
   2,678,870.31/4,018,859.06 = 881,861.61/x
3. Step 3: Cross multiply
   2,678,870.31x = 4,018,859.06 × 881,861.61
4. Step 4: Simplify right side
   2,678,870.31x = 3,544,077,521,014.69
5. Step 5: Solve for x
   x = 3,544,077,521,014.69/2,678,870.31
6. Step 6: Final answer
   x = 1,322,974.65