Finding the Fourth Proportional to 1,222.08, 1,684.71 and 848.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,222.08 : 1,684.71 = 848.49 : x
2. Step 2: Convert to fraction form
   1,222.08/1,684.71 = 848.49/x
3. Step 3: Cross multiply
   1,222.08x = 1,684.71 × 848.49
4. Step 4: Simplify right side
   1,222.08x = 1,429,459.59
5. Step 5: Solve for x
   x = 1,429,459.59/1,222.08
6. Step 6: Final answer
   x = 1,169.69