Finding the Fourth Proportional to 3,085.50, 4,626 and 1,137.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,085.50 : 4,626 = 1,137.72 : x
2. Step 2: Convert to fraction form
   3,085.50/4,626 = 1,137.72/x
3. Step 3: Cross multiply
   3,085.50x = 4,626 × 1,137.72
4. Step 4: Simplify right side
   3,085.50x = 5,263,092.72
5. Step 5: Solve for x
   x = 5,263,092.72/3,085.50
6. Step 6: Final answer
   x = 1,705.75