Finding the Fourth Proportional to 2,085.33, 2,877.89 and 1,201.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,085.33 : 2,877.89 = 1,201.12 : x
2. Step 2: Convert to fraction form
   2,085.33/2,877.89 = 1,201.12/x
3. Step 3: Cross multiply
   2,085.33x = 2,877.89 × 1,201.12
4. Step 4: Simplify right side
   2,085.33x = 3,456,691.24
5. Step 5: Solve for x
   x = 3,456,691.24/2,085.33
6. Step 6: Final answer
   x = 1,657.62