Finding the Fourth Proportional to 2,646.90, 3,968.22 and 1,002.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,646.90 : 3,968.22 = 1,002.54 : x
2. Step 2: Convert to fraction form
   2,646.90/3,968.22 = 1,002.54/x
3. Step 3: Cross multiply
   2,646.90x = 3,968.22 × 1,002.54
4. Step 4: Simplify right side
   2,646.90x = 3,978,299.28
5. Step 5: Solve for x
   x = 3,978,299.28/2,646.90
6. Step 6: Final answer
   x = 1,503.00