Finding the Fourth Proportional to 593,221.52, 817,989.72 and 378,020.72

Step by Step Solution

1. Step 1: Write the proportion equation
   593,221.52 : 817,989.72 = 378,020.72 : x
2. Step 2: Convert to fraction form
   593,221.52/817,989.72 = 378,020.72/x
3. Step 3: Cross multiply
   593,221.52x = 817,989.72 × 378,020.72
4. Step 4: Simplify right side
   593,221.52x = 309,217,062,907.00
5. Step 5: Solve for x
   x = 309,217,062,907.00/593,221.52
6. Step 6: Final answer
   x = 521,250.58