Finding the Fourth Proportional to 3,085.59, 4,256.91 and 1,826.19

Step by Step Solution

1. Step 1: Write the proportion equation
   3,085.59 : 4,256.91 = 1,826.19 : x
2. Step 2: Convert to fraction form
   3,085.59/4,256.91 = 1,826.19/x
3. Step 3: Cross multiply
   3,085.59x = 4,256.91 × 1,826.19
4. Step 4: Simplify right side
   3,085.59x = 7,773,906.70
5. Step 5: Solve for x
   x = 7,773,906.70/3,085.59
6. Step 6: Final answer
   x = 2,519.42