Finding the Fourth Proportional to 627,790.69, 866,648.73 and 401,567.41

Step by Step Solution

1. Step 1: Write the proportion equation
   627,790.69 : 866,648.73 = 401,567.41 : x
2. Step 2: Convert to fraction form
   627,790.69/866,648.73 = 401,567.41/x
3. Step 3: Cross multiply
   627,790.69x = 866,648.73 × 401,567.41
4. Step 4: Simplify right side
   627,790.69x = 348,017,885,885.89
5. Step 5: Solve for x
   x = 348,017,885,885.89/627,790.69
6. Step 6: Final answer
   x = 554,353.37