Finding the Fourth Proportional to 2,021,037.90, 3,031,978.05 and 673,619.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,021,037.90 : 3,031,978.05 = 673,619.10 : x
2. Step 2: Convert to fraction form
   2,021,037.90/3,031,978.05 = 673,619.10/x
3. Step 3: Cross multiply
   2,021,037.90x = 3,031,978.05 × 673,619.10
4. Step 4: Simplify right side
   2,021,037.90x = 2,042,398,325,260.76
5. Step 5: Solve for x
   x = 2,042,398,325,260.76/2,021,037.90
6. Step 6: Final answer
   x = 1,010,569.04