Finding the Fourth Proportional to 1,892.15, 2,839.08 and 852.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,892.15 : 2,839.08 = 852.42 : x
2. Step 2: Convert to fraction form
   1,892.15/2,839.08 = 852.42/x
3. Step 3: Cross multiply
   1,892.15x = 2,839.08 × 852.42
4. Step 4: Simplify right side
   1,892.15x = 2,420,088.57
5. Step 5: Solve for x
   x = 2,420,088.57/1,892.15
6. Step 6: Final answer
   x = 1,279.02