Finding the Fourth Proportional to 1,371.38, 1,892.52 and 847.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,371.38 : 1,892.52 = 847.71 : x
2. Step 2: Convert to fraction form
   1,371.38/1,892.52 = 847.71/x
3. Step 3: Cross multiply
   1,371.38x = 1,892.52 × 847.71
4. Step 4: Simplify right side
   1,371.38x = 1,604,308.13
5. Step 5: Solve for x
   x = 1,604,308.13/1,371.38
6. Step 6: Final answer
   x = 1,169.85