Finding the Fourth Proportional to 2,127.87, 2,936.03 and 1,243.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,127.87 : 2,936.03 = 1,243.50 : x
2. Step 2: Convert to fraction form
   2,127.87/2,936.03 = 1,243.50/x
3. Step 3: Cross multiply
   2,127.87x = 2,936.03 × 1,243.50
4. Step 4: Simplify right side
   2,127.87x = 3,650,938.62
5. Step 5: Solve for x
   x = 3,650,938.62/2,127.87
6. Step 6: Final answer
   x = 1,715.78