Finding the Fourth Proportional to 1,438.52, 1,984.91 and 849.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,438.52 : 1,984.91 = 849.24 : x
2. Step 2: Convert to fraction form
   1,438.52/1,984.91 = 849.24/x
3. Step 3: Cross multiply
   1,438.52x = 1,984.91 × 849.24
4. Step 4: Simplify right side
   1,438.52x = 1,685,660.72
5. Step 5: Solve for x
   x = 1,685,660.72/1,438.52
6. Step 6: Final answer
   x = 1,171.81