Finding the Fourth Proportional to 1,371.56, 1,893.57 and 848.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,371.56 : 1,893.57 = 848.30 : x
2. Step 2: Convert to fraction form
   1,371.56/1,893.57 = 848.30/x
3. Step 3: Cross multiply
   1,371.56x = 1,893.57 × 848.30
4. Step 4: Simplify right side
   1,371.56x = 1,606,315.43
5. Step 5: Solve for x
   x = 1,606,315.43/1,371.56
6. Step 6: Final answer
   x = 1,171.16