Finding the Fourth Proportional to 1,009,936.53, 1,392,451.82 and 646,763.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,009,936.53 : 1,392,451.82 = 646,763.31 : x
2. Step 2: Convert to fraction form
   1,009,936.53/1,392,451.82 = 646,763.31/x
3. Step 3: Cross multiply
   1,009,936.53x = 1,392,451.82 × 646,763.31
4. Step 4: Simplify right side
   1,009,936.53x = 900,586,744,884.91
5. Step 5: Solve for x
   x = 900,586,744,884.91/1,009,936.53
6. Step 6: Final answer
   x = 891,726.08