Finding the Fourth Proportional to 2,127.47, 2,936.49 and 1,381.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,127.47 : 2,936.49 = 1,381.39 : x
2. Step 2: Convert to fraction form
   2,127.47/2,936.49 = 1,381.39/x
3. Step 3: Cross multiply
   2,127.47x = 2,936.49 × 1,381.39
4. Step 4: Simplify right side
   2,127.47x = 4,056,416.33
5. Step 5: Solve for x
   x = 4,056,416.33/2,127.47
6. Step 6: Final answer
   x = 1,906.69