Finding the Fourth Proportional to 2,105,899.67, 2,906,142.09 and 1,188,323.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105,899.67 : 2,906,142.09 = 1,188,323.27 : x
2. Step 2: Convert to fraction form
   2,105,899.67/2,906,142.09 = 1,188,323.27/x
3. Step 3: Cross multiply
   2,105,899.67x = 2,906,142.09 × 1,188,323.27
4. Step 4: Simplify right side
   2,105,899.67x = 3,453,436,271,473.43
5. Step 5: Solve for x
   x = 3,453,436,271,473.43/2,105,899.67
6. Step 6: Final answer
   x = 1,639,886.42