Finding the Fourth Proportional to 1,892.38, 2,839.29 and 738.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,892.38 : 2,839.29 = 738.22 : x
2. Step 2: Convert to fraction form
   1,892.38/2,839.29 = 738.22/x
3. Step 3: Cross multiply
   1,892.38x = 2,839.29 × 738.22
4. Step 4: Simplify right side
   1,892.38x = 2,096,002.78
5. Step 5: Solve for x
   x = 2,096,002.78/1,892.38
6. Step 6: Final answer
   x = 1,107.60