Finding the Fourth Proportional to 2,105,078.09, 2,904,993.65 and 1,187,314.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105,078.09 : 2,904,993.65 = 1,187,314.81 : x
2. Step 2: Convert to fraction form
   2,105,078.09/2,904,993.65 = 1,187,314.81/x
3. Step 3: Cross multiply
   2,105,078.09x = 2,904,993.65 × 1,187,314.81
4. Step 4: Simplify right side
   2,105,078.09x = 3,449,141,979,306.76
5. Step 5: Solve for x
   x = 3,449,141,979,306.76/2,105,078.09
6. Step 6: Final answer
   x = 1,638,486.48