Finding the Fourth Proportional to 619,036.83, 928,817.69 and 338,226.03

Step by Step Solution

1. Step 1: Write the proportion equation
   619,036.83 : 928,817.69 = 338,226.03 : x
2. Step 2: Convert to fraction form
   619,036.83/928,817.69 = 338,226.03/x
3. Step 3: Cross multiply
   619,036.83x = 928,817.69 × 338,226.03
4. Step 4: Simplify right side
   619,036.83x = 314,150,318,191.34
5. Step 5: Solve for x
   x = 314,150,318,191.34/619,036.83
6. Step 6: Final answer
   x = 507,482.44