Finding the Fourth Proportional to 852.39, 1,173.89 and 849.69

Step by Step Solution

1. Step 1: Write the proportion equation
   852.39 : 1,173.89 = 849.69 : x
2. Step 2: Convert to fraction form
   852.39/1,173.89 = 849.69/x
3. Step 3: Cross multiply
   852.39x = 1,173.89 × 849.69
4. Step 4: Simplify right side
   852.39x = 997,444.72
5. Step 5: Solve for x
   x = 997,444.72/852.39
6. Step 6: Final answer
   x = 1,170.17