Finding the Fourth Proportional to 978,482.30, 1,467,371.69 and 338,612.28

Step by Step Solution

1. Step 1: Write the proportion equation
   978,482.30 : 1,467,371.69 = 338,612.28 : x
2. Step 2: Convert to fraction form
   978,482.30/1,467,371.69 = 338,612.28/x
3. Step 3: Cross multiply
   978,482.30x = 1,467,371.69 × 338,612.28
4. Step 4: Simplify right side
   978,482.30x = 496,870,073,788.31
5. Step 5: Solve for x
   x = 496,870,073,788.31/978,482.30
6. Step 6: Final answer
   x = 507,796.69