Finding the Fourth Proportional to 607,309, 838,086.48 and 339,037

Step by Step Solution

1. Step 1: Write the proportion equation
   607,309 : 838,086.48 = 339,037 : x
2. Step 2: Convert to fraction form
   607,309/838,086.48 = 339,037/x
3. Step 3: Cross multiply
   607,309x = 838,086.48 × 339,037
4. Step 4: Simplify right side
   607,309x = 284,142,325,919.76
5. Step 5: Solve for x
   x = 284,142,325,919.76/607,309
6. Step 6: Final answer
   x = 467,871.09