Finding the Fourth Proportional to 510,429.56, 704,392.80 and 284,128.52

Step by Step Solution

1. Step 1: Write the proportion equation
   510,429.56 : 704,392.80 = 284,128.52 : x
2. Step 2: Convert to fraction form
   510,429.56/704,392.80 = 284,128.52/x
3. Step 3: Cross multiply
   510,429.56x = 704,392.80 × 284,128.52
4. Step 4: Simplify right side
   510,429.56x = 200,138,083,762.66
5. Step 5: Solve for x
   x = 200,138,083,762.66/510,429.56
6. Step 6: Final answer
   x = 392,097.36