Finding the Fourth Proportional to 1,443.15, 2,160.57 and 848.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,443.15 : 2,160.57 = 848.37 : x
2. Step 2: Convert to fraction form
   1,443.15/2,160.57 = 848.37/x
3. Step 3: Cross multiply
   1,443.15x = 2,160.57 × 848.37
4. Step 4: Simplify right side
   1,443.15x = 1,832,962.77
5. Step 5: Solve for x
   x = 1,832,962.77/1,443.15
6. Step 6: Final answer
   x = 1,270.11