Finding the Fourth Proportional to 510,973.32, 705,164.94 and 284,618.76

Step by Step Solution

1. Step 1: Write the proportion equation
   510,973.32 : 705,164.94 = 284,618.76 : x
2. Step 2: Convert to fraction form
   510,973.32/705,164.94 = 284,618.76/x
3. Step 3: Cross multiply
   510,973.32x = 705,164.94 × 284,618.76
4. Step 4: Simplify right side
   510,973.32x = 200,703,170,818.27
5. Step 5: Solve for x
   x = 200,703,170,818.27/510,973.32
6. Step 6: Final answer
   x = 392,786.01