Finding the Fourth Proportional to 2,141,549.94, 3,213,578.92 and 861,958.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,141,549.94 : 3,213,578.92 = 861,958.10 : x
2. Step 2: Convert to fraction form
   2,141,549.94/3,213,578.92 = 861,958.10/x
3. Step 3: Cross multiply
   2,141,549.94x = 3,213,578.92 × 861,958.10
4. Step 4: Simplify right side
   2,141,549.94x = 2,769,970,380,083.25
5. Step 5: Solve for x
   x = 2,769,970,380,083.25/2,141,549.94
6. Step 6: Final answer
   x = 1,293,441.88