Finding the Fourth Proportional to 2,746.55, 4,121.18 and 1,285.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,746.55 : 4,121.18 = 1,285.45 : x
2. Step 2: Convert to fraction form
   2,746.55/4,121.18 = 1,285.45/x
3. Step 3: Cross multiply
   2,746.55x = 4,121.18 × 1,285.45
4. Step 4: Simplify right side
   2,746.55x = 5,297,570.83
5. Step 5: Solve for x
   x = 5,297,570.83/2,746.55
6. Step 6: Final answer
   x = 1,928.81