Finding the Fourth Proportional to 1,483,646.38, 2,225,158.18 and 418,439.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,483,646.38 : 2,225,158.18 = 418,439.33 : x
2. Step 2: Convert to fraction form
   1,483,646.38/2,225,158.18 = 418,439.33/x
3. Step 3: Cross multiply
   1,483,646.38x = 2,225,158.18 × 418,439.33
4. Step 4: Simplify right side
   1,483,646.38x = 931,093,687,870.58
5. Step 5: Solve for x
   x = 931,093,687,870.58/1,483,646.38
6. Step 6: Final answer
   x = 627,571.17