Finding the Fourth Proportional to 628,464.90, 867,281.76 and 341,978.82

Step by Step Solution

1. Step 1: Write the proportion equation
   628,464.90 : 867,281.76 = 341,978.82 : x
2. Step 2: Convert to fraction form
   628,464.90/867,281.76 = 341,978.82/x
3. Step 3: Cross multiply
   628,464.90x = 867,281.76 × 341,978.82
4. Step 4: Simplify right side
   628,464.90x = 296,591,992,892.32
5. Step 5: Solve for x
   x = 296,591,992,892.32/628,464.90
6. Step 6: Final answer
   x = 471,930.88