Finding the Fourth Proportional to 2,021,139.90, 3,032,131.05 and 673,721.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,021,139.90 : 3,032,131.05 = 673,721.10 : x
2. Step 2: Convert to fraction form
   2,021,139.90/3,032,131.05 = 673,721.10/x
3. Step 3: Cross multiply
   2,021,139.90x = 3,032,131.05 × 673,721.10
4. Step 4: Simplify right side
   2,021,139.90x = 2,042,810,666,350.15
5. Step 5: Solve for x
   x = 2,042,810,666,350.15/2,021,139.90
6. Step 6: Final answer
   x = 1,010,722.05