Finding the Fourth Proportional to 2,105,051.63, 2,904,308.10 and 1,288,403.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105,051.63 : 2,904,308.10 = 1,288,403.96 : x
2. Step 2: Convert to fraction form
   2,105,051.63/2,904,308.10 = 1,288,403.96/x
3. Step 3: Cross multiply
   2,105,051.63x = 2,904,308.10 × 1,288,403.96
4. Step 4: Simplify right side
   2,105,051.63x = 3,741,922,042,578.54
5. Step 5: Solve for x
   x = 3,741,922,042,578.54/2,105,051.63
6. Step 6: Final answer
   x = 1,777,591.58