Finding the Fourth Proportional to 2,175, 3,001.50 and 1,243.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,175 : 3,001.50 = 1,243.50 : x
2. Step 2: Convert to fraction form
   2,175/3,001.50 = 1,243.50/x
3. Step 3: Cross multiply
   2,175x = 3,001.50 × 1,243.50
4. Step 4: Simplify right side
   2,175x = 3,732,365.25
5. Step 5: Solve for x
   x = 3,732,365.25/2,175
6. Step 6: Final answer
   x = 1,716.03