Finding the Fourth Proportional to 2,268,288, 3,403,062.57 and 989,007.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,268,288 : 3,403,062.57 = 989,007.30 : x
2. Step 2: Convert to fraction form
   2,268,288/3,403,062.57 = 989,007.30/x
3. Step 3: Cross multiply
   2,268,288x = 3,403,062.57 × 989,007.30
4. Step 4: Simplify right side
   2,268,288x = 3,365,653,724,086.76
5. Step 5: Solve for x
   x = 3,365,653,724,086.76/2,268,288
6. Step 6: Final answer
   x = 1,483,785.89