Finding the Fourth Proportional to 2,645.02, 3,968.22 and 1,084.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,645.02 : 3,968.22 = 1,084.51 : x
2. Step 2: Convert to fraction form
   2,645.02/3,968.22 = 1,084.51/x
3. Step 3: Cross multiply
   2,645.02x = 3,968.22 × 1,084.51
4. Step 4: Simplify right side
   2,645.02x = 4,303,554.43
5. Step 5: Solve for x
   x = 4,303,554.43/2,645.02
6. Step 6: Final answer
   x = 1,627.04