Finding the Fourth Proportional to 1,383,815.82, 1,909,660.52 and 771,968.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,383,815.82 : 1,909,660.52 = 771,968.09 : x
2. Step 2: Convert to fraction form
   1,383,815.82/1,909,660.52 = 771,968.09/x
3. Step 3: Cross multiply
   1,383,815.82x = 1,909,660.52 × 771,968.09
4. Step 4: Simplify right side
   1,383,815.82x = 1,474,196,985,087.12
5. Step 5: Solve for x
   x = 1,474,196,985,087.12/1,383,815.82
6. Step 6: Final answer
   x = 1,065,313.00