Finding the Fourth Proportional to 1,892.67, 2,839.61 and 722.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,892.67 : 2,839.61 = 722.62 : x
2. Step 2: Convert to fraction form
   1,892.67/2,839.61 = 722.62/x
3. Step 3: Cross multiply
   1,892.67x = 2,839.61 × 722.62
4. Step 4: Simplify right side
   1,892.67x = 2,051,960.27
5. Step 5: Solve for x
   x = 2,051,960.27/1,892.67
6. Step 6: Final answer
   x = 1,084.16