Finding the Fourth Proportional to 3,085.98, 4,258.55 and 1,760.11

Step by Step Solution

1. Step 1: Write the proportion equation
   3,085.98 : 4,258.55 = 1,760.11 : x
2. Step 2: Convert to fraction form
   3,085.98/4,258.55 = 1,760.11/x
3. Step 3: Cross multiply
   3,085.98x = 4,258.55 × 1,760.11
4. Step 4: Simplify right side
   3,085.98x = 7,495,524.25
5. Step 5: Solve for x
   x = 7,495,524.25/3,085.98
6. Step 6: Final answer
   x = 2,428.89