Finding the Fourth Proportional to 2,120,017.69, 3,178,962.09 and 981,800.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,120,017.69 : 3,178,962.09 = 981,800.83 : x
2. Step 2: Convert to fraction form
   2,120,017.69/3,178,962.09 = 981,800.83/x
3. Step 3: Cross multiply
   2,120,017.69x = 3,178,962.09 × 981,800.83
4. Step 4: Simplify right side
   2,120,017.69x = 3,121,107,618,500.53
5. Step 5: Solve for x
   x = 3,121,107,618,500.53/2,120,017.69
6. Step 6: Final answer
   x = 1,472,208.29