Finding the Fourth Proportional to 2,861,805.40, 3,947,647.06 and 1,786,851.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,861,805.40 : 3,947,647.06 = 1,786,851.16 : x
2. Step 2: Convert to fraction form
   2,861,805.40/3,947,647.06 = 1,786,851.16/x
3. Step 3: Cross multiply
   2,861,805.40x = 3,947,647.06 × 1,786,851.16
4. Step 4: Simplify right side
   2,861,805.40x = 7,053,857,728,431.59
5. Step 5: Solve for x
   x = 7,053,857,728,431.59/2,861,805.40
6. Step 6: Final answer
   x = 2,464,827.88