Finding the Fourth Proportional to 2,187.84, 3,019.48 and 1,243.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,187.84 : 3,019.48 = 1,243.98 : x
2. Step 2: Convert to fraction form
   2,187.84/3,019.48 = 1,243.98/x
3. Step 3: Cross multiply
   2,187.84x = 3,019.48 × 1,243.98
4. Step 4: Simplify right side
   2,187.84x = 3,756,172.73
5. Step 5: Solve for x
   x = 3,756,172.73/2,187.84
6. Step 6: Final answer
   x = 1,716.84