Finding the Fourth Proportional to 2,085.75, 2,878.32 and 1,201.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,085.75 : 2,878.32 = 1,201.55 : x
2. Step 2: Convert to fraction form
   2,085.75/2,878.32 = 1,201.55/x
3. Step 3: Cross multiply
   2,085.75x = 2,878.32 × 1,201.55
4. Step 4: Simplify right side
   2,085.75x = 3,458,431.00
5. Step 5: Solve for x
   x = 3,458,431.00/2,085.75
6. Step 6: Final answer
   x = 1,658.12