Finding the Fourth Proportional to 1,371.06, 1,891.50 and 847.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,371.06 : 1,891.50 = 847.38 : x
2. Step 2: Convert to fraction form
   1,371.06/1,891.50 = 847.38/x
3. Step 3: Cross multiply
   1,371.06x = 1,891.50 × 847.38
4. Step 4: Simplify right side
   1,371.06x = 1,602,819.27
5. Step 5: Solve for x
   x = 1,602,819.27/1,371.06
6. Step 6: Final answer
   x = 1,169.04