Finding the Fourth Proportional to 630,949.68, 870,673.59 and 344,412.18

Step by Step Solution

1. Step 1: Write the proportion equation
   630,949.68 : 870,673.59 = 344,412.18 : x
2. Step 2: Convert to fraction form
   630,949.68/870,673.59 = 344,412.18/x
3. Step 3: Cross multiply
   630,949.68x = 870,673.59 × 344,412.18
4. Step 4: Simplify right side
   630,949.68x = 299,870,589,200.33
5. Step 5: Solve for x
   x = 299,870,589,200.33/630,949.68
6. Step 6: Final answer
   x = 475,268.63