Finding the Fourth Proportional to 592,680.20, 817,898.69 and 320,748.12

Step by Step Solution

1. Step 1: Write the proportion equation
   592,680.20 : 817,898.69 = 320,748.12 : x
2. Step 2: Convert to fraction form
   592,680.20/817,898.69 = 320,748.12/x
3. Step 3: Cross multiply
   592,680.20x = 817,898.69 × 320,748.12
4. Step 4: Simplify right side
   592,680.20x = 262,339,467,969.83
5. Step 5: Solve for x
   x = 262,339,467,969.83/592,680.20
6. Step 6: Final answer
   x = 442,632.42