Finding the Fourth Proportional to 510,483.16, 704,454.78 and 284,123.80

Step by Step Solution

1. Step 1: Write the proportion equation
   510,483.16 : 704,454.78 = 284,123.80 : x
2. Step 2: Convert to fraction form
   510,483.16/704,454.78 = 284,123.80/x
3. Step 3: Cross multiply
   510,483.16x = 704,454.78 × 284,123.80
4. Step 4: Simplify right side
   510,483.16x = 200,152,369,021.76
5. Step 5: Solve for x
   x = 200,152,369,021.76/510,483.16
6. Step 6: Final answer
   x = 392,084.18