Finding the Fourth Proportional to 1,673.33, 2,512.29 and 852.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,673.33 : 2,512.29 = 852.15 : x
2. Step 2: Convert to fraction form
   1,673.33/2,512.29 = 852.15/x
3. Step 3: Cross multiply
   1,673.33x = 2,512.29 × 852.15
4. Step 4: Simplify right side
   1,673.33x = 2,140,854.20
5. Step 5: Solve for x
   x = 2,140,854.20/1,673.33
6. Step 6: Final answer
   x = 1,279.40