Finding the Fourth Proportional to 2,365.78, 3,264.78 and 1,371.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,365.78 : 3,264.78 = 1,371.12 : x
2. Step 2: Convert to fraction form
   2,365.78/3,264.78 = 1,371.12/x
3. Step 3: Cross multiply
   2,365.78x = 3,264.78 × 1,371.12
4. Step 4: Simplify right side
   2,365.78x = 4,476,388.83
5. Step 5: Solve for x
   x = 4,476,388.83/2,365.78
6. Step 6: Final answer
   x = 1,892.14