Finding the Fourth Proportional to 978,553.95, 1,468,204.56 and 379,935.42

Step by Step Solution

1. Step 1: Write the proportion equation
   978,553.95 : 1,468,204.56 = 379,935.42 : x
2. Step 2: Convert to fraction form
   978,553.95/1,468,204.56 = 379,935.42/x
3. Step 3: Cross multiply
   978,553.95x = 1,468,204.56 × 379,935.42
4. Step 4: Simplify right side
   978,553.95x = 557,822,916,149.52
5. Step 5: Solve for x
   x = 557,822,916,149.52/978,553.95
6. Step 6: Final answer
   x = 570,048.20