Finding the Fourth Proportional to 628,083.78, 866,766.59 and 341,605.81

Step by Step Solution

1. Step 1: Write the proportion equation
   628,083.78 : 866,766.59 = 341,605.81 : x
2. Step 2: Convert to fraction form
   628,083.78/866,766.59 = 341,605.81/x
3. Step 3: Cross multiply
   628,083.78x = 866,766.59 × 341,605.81
4. Step 4: Simplify right side
   628,083.78x = 296,092,503,057.89
5. Step 5: Solve for x
   x = 296,092,503,057.89/628,083.78
6. Step 6: Final answer
   x = 471,421.99