Finding the Fourth Proportional to 2,127.38, 2,935.53 and 1,243.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,127.38 : 2,935.53 = 1,243.17 : x
2. Step 2: Convert to fraction form
   2,127.38/2,935.53 = 1,243.17/x
3. Step 3: Cross multiply
   2,127.38x = 2,935.53 × 1,243.17
4. Step 4: Simplify right side
   2,127.38x = 3,649,362.83
5. Step 5: Solve for x
   x = 3,649,362.83/2,127.38
6. Step 6: Final answer
   x = 1,715.43