Finding the Fourth Proportional to 619,074, 854,322.12 and 364,581.72

Step by Step Solution

1. Step 1: Write the proportion equation
   619,074 : 854,322.12 = 364,581.72 : x
2. Step 2: Convert to fraction form
   619,074/854,322.12 = 364,581.72/x
3. Step 3: Cross multiply
   619,074x = 854,322.12 × 364,581.72
4. Step 4: Simplify right side
   619,074x = 311,470,227,943.65
5. Step 5: Solve for x
   x = 311,470,227,943.65/619,074
6. Step 6: Final answer
   x = 503,122.77