Finding the Fourth Proportional to 2,625.73, 3,938.25 and 1,066.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,625.73 : 3,938.25 = 1,066.60 : x
2. Step 2: Convert to fraction form
   2,625.73/3,938.25 = 1,066.60/x
3. Step 3: Cross multiply
   2,625.73x = 3,938.25 × 1,066.60
4. Step 4: Simplify right side
   2,625.73x = 4,200,537.45
5. Step 5: Solve for x
   x = 4,200,537.45/2,625.73
6. Step 6: Final answer
   x = 1,599.76