Finding the Fourth Proportional to 510,382.50, 704,327.86 and 284,028.18

Step by Step Solution

1. Step 1: Write the proportion equation
   510,382.50 : 704,327.86 = 284,028.18 : x
2. Step 2: Convert to fraction form
   510,382.50/704,327.86 = 284,028.18/x
3. Step 3: Cross multiply
   510,382.50x = 704,327.86 × 284,028.18
4. Step 4: Simplify right side
   510,382.50x = 200,048,960,199.10
5. Step 5: Solve for x
   x = 200,048,960,199.10/510,382.50
6. Step 6: Final answer
   x = 391,958.89