Finding the Fourth Proportional to 2,866,686.94, 3,956,191.44 and 1,643,196.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,866,686.94 : 3,956,191.44 = 1,643,196.10 : x
2. Step 2: Convert to fraction form
   2,866,686.94/3,956,191.44 = 1,643,196.10/x
3. Step 3: Cross multiply
   2,866,686.94x = 3,956,191.44 × 1,643,196.10
4. Step 4: Simplify right side
   2,866,686.94x = 6,500,798,345,061.38
5. Step 5: Solve for x
   x = 6,500,798,345,061.38/2,866,686.94
6. Step 6: Final answer
   x = 2,267,704.32