Finding the Fourth Proportional to 2,111.49, 2,910.74 and 1,365.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.49 : 2,910.74 = 1,365.39 : x
2. Step 2: Convert to fraction form
   2,111.49/2,910.74 = 1,365.39/x
3. Step 3: Cross multiply
   2,111.49x = 2,910.74 × 1,365.39
4. Step 4: Simplify right side
   2,111.49x = 3,974,288.46
5. Step 5: Solve for x
   x = 3,974,288.46/2,111.49
6. Step 6: Final answer
   x = 1,882.22