Finding the Fourth Proportional to 1,382,268.96, 1,907,299.89 and 770,287.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,382,268.96 : 1,907,299.89 = 770,287.59 : x
2. Step 2: Convert to fraction form
   1,382,268.96/1,907,299.89 = 770,287.59/x
3. Step 3: Cross multiply
   1,382,268.96x = 1,907,299.89 × 770,287.59
4. Step 4: Simplify right side
   1,382,268.96x = 1,469,169,435,675.37
5. Step 5: Solve for x
   x = 1,469,169,435,675.37/1,382,268.96
6. Step 6: Final answer
   x = 1,062,867.99