Finding the Fourth Proportional to 2,153.04, 2,971.03 and 1,208.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,153.04 : 2,971.03 = 1,208.69 : x
2. Step 2: Convert to fraction form
   2,153.04/2,971.03 = 1,208.69/x
3. Step 3: Cross multiply
   2,153.04x = 2,971.03 × 1,208.69
4. Step 4: Simplify right side
   2,153.04x = 3,591,054.25
5. Step 5: Solve for x
   x = 3,591,054.25/2,153.04
6. Step 6: Final answer
   x = 1,667.90