Finding the Fourth Proportional to 1,404,053.33, 2,104,388.10 and 644,847.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404,053.33 : 2,104,388.10 = 644,847.21 : x
2. Step 2: Convert to fraction form
   1,404,053.33/2,104,388.10 = 644,847.21/x
3. Step 3: Cross multiply
   1,404,053.33x = 2,104,388.10 × 644,847.21
4. Step 4: Simplify right side
   1,404,053.33x = 1,357,008,795,042.20
5. Step 5: Solve for x
   x = 1,357,008,795,042.20/1,404,053.33
6. Step 6: Final answer
   x = 966,493.77