Finding the Fourth Proportional to 2,085.54, 2,877.42 and 1,201.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,085.54 : 2,877.42 = 1,201.17 : x
2. Step 2: Convert to fraction form
   2,085.54/2,877.42 = 1,201.17/x
3. Step 3: Cross multiply
   2,085.54x = 2,877.42 × 1,201.17
4. Step 4: Simplify right side
   2,085.54x = 3,456,270.58
5. Step 5: Solve for x
   x = 3,456,270.58/2,085.54
6. Step 6: Final answer
   x = 1,657.25