Finding the Fourth Proportional to 2,107,042.84, 3,161,067.18 and 687,100.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,107,042.84 : 3,161,067.18 = 687,100.60 : x
2. Step 2: Convert to fraction form
   2,107,042.84/3,161,067.18 = 687,100.60/x
3. Step 3: Cross multiply
   2,107,042.84x = 3,161,067.18 × 687,100.60
4. Step 4: Simplify right side
   2,107,042.84x = 2,171,971,156,018.31
5. Step 5: Solve for x
   x = 2,171,971,156,018.31/2,107,042.84
6. Step 6: Final answer
   x = 1,030,814.90