Finding the Fourth Proportional to 978,362.33, 1,467,643.98 and 338,665.07

Step by Step Solution

1. Step 1: Write the proportion equation
   978,362.33 : 1,467,643.98 = 338,665.07 : x
2. Step 2: Convert to fraction form
   978,362.33/1,467,643.98 = 338,665.07/x
3. Step 3: Cross multiply
   978,362.33x = 1,467,643.98 × 338,665.07
4. Step 4: Simplify right side
   978,362.33x = 497,039,743,883.56
5. Step 5: Solve for x
   x = 497,039,743,883.56/978,362.33
6. Step 6: Final answer
   x = 508,032.38