Finding the Fourth Proportional to 510,376.55, 704,350.69 and 284,022.05

Step by Step Solution

1. Step 1: Write the proportion equation
   510,376.55 : 704,350.69 = 284,022.05 : x
2. Step 2: Convert to fraction form
   510,376.55/704,350.69 = 284,022.05/x
3. Step 3: Cross multiply
   510,376.55x = 704,350.69 × 284,022.05
4. Step 4: Simplify right side
   510,376.55x = 200,051,122,660.91
5. Step 5: Solve for x
   x = 200,051,122,660.91/510,376.55
6. Step 6: Final answer
   x = 391,967.70