Finding the Fourth Proportional to 1,673.83, 2,512.28 and 852.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,673.83 : 2,512.28 = 852.69 : x
2. Step 2: Convert to fraction form
   1,673.83/2,512.28 = 852.69/x
3. Step 3: Cross multiply
   1,673.83x = 2,512.28 × 852.69
4. Step 4: Simplify right side
   1,673.83x = 2,142,196.03
5. Step 5: Solve for x
   x = 2,142,196.03/1,673.83
6. Step 6: Final answer
   x = 1,279.82