Finding the Fourth Proportional to 1,009,936.91, 1,392,452.34 and 646,763.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,009,936.91 : 1,392,452.34 = 646,763.69 : x
2. Step 2: Convert to fraction form
   1,009,936.91/1,392,452.34 = 646,763.69/x
3. Step 3: Cross multiply
   1,009,936.91x = 1,392,452.34 × 646,763.69
4. Step 4: Simplify right side
   1,009,936.91x = 900,587,606,790.76
5. Step 5: Solve for x
   x = 900,587,606,790.76/1,009,936.91
6. Step 6: Final answer
   x = 891,726.60