Finding the Fourth Proportional to 647,605, 893,694.90 and 379,333

Step by Step Solution

1. Step 1: Write the proportion equation
   647,605 : 893,694.90 = 379,333 : x
2. Step 2: Convert to fraction form
   647,605/893,694.90 = 379,333/x
3. Step 3: Cross multiply
   647,605x = 893,694.90 × 379,333
4. Step 4: Simplify right side
   647,605x = 339,007,967,501.70
5. Step 5: Solve for x
   x = 339,007,967,501.70/647,605
6. Step 6: Final answer
   x = 523,479.54