Finding the Fourth Proportional to 1,892.17, 2,839.20 and 1,235.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,892.17 : 2,839.20 = 1,235.33 : x
2. Step 2: Convert to fraction form
   1,892.17/2,839.20 = 1,235.33/x
3. Step 3: Cross multiply
   1,892.17x = 2,839.20 × 1,235.33
4. Step 4: Simplify right side
   1,892.17x = 3,507,348.94
5. Step 5: Solve for x
   x = 3,507,348.94/1,892.17
6. Step 6: Final answer
   x = 1,853.61