Finding the Fourth Proportional to 2,188.09, 3,019.10 and 1,304.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,188.09 : 3,019.10 = 1,304.18 : x
2. Step 2: Convert to fraction form
   2,188.09/3,019.10 = 1,304.18/x
3. Step 3: Cross multiply
   2,188.09x = 3,019.10 × 1,304.18
4. Step 4: Simplify right side
   2,188.09x = 3,937,449.84
5. Step 5: Solve for x
   x = 3,937,449.84/2,188.09
6. Step 6: Final answer
   x = 1,799.49