Finding the Fourth Proportional to 593,219.52, 817,986.96 and 378,018.72

Step by Step Solution

1. Step 1: Write the proportion equation
   593,219.52 : 817,986.96 = 378,018.72 : x
2. Step 2: Convert to fraction form
   593,219.52/817,986.96 = 378,018.72/x
3. Step 3: Cross multiply
   593,219.52x = 817,986.96 × 378,018.72
4. Step 4: Simplify right side
   593,219.52x = 309,214,383,595.89
5. Step 5: Solve for x
   x = 309,214,383,595.89/593,219.52
6. Step 6: Final answer
   x = 521,247.82