Finding the Fourth Proportional to 978,622.65, 1,467,581.81 and 338,752.53

Step by Step Solution

1. Step 1: Write the proportion equation
   978,622.65 : 1,467,581.81 = 338,752.53 : x
2. Step 2: Convert to fraction form
   978,622.65/1,467,581.81 = 338,752.53/x
3. Step 3: Cross multiply
   978,622.65x = 1,467,581.81 × 338,752.53
4. Step 4: Simplify right side
   978,622.65x = 497,147,049,425.72
5. Step 5: Solve for x
   x = 497,147,049,425.72/978,622.65
6. Step 6: Final answer
   x = 508,006.89