Finding the Fourth Proportional to 2,280.55, 3,146.96 and 1,336.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,280.55 : 3,146.96 = 1,336.21 : x
2. Step 2: Convert to fraction form
   2,280.55/3,146.96 = 1,336.21/x
3. Step 3: Cross multiply
   2,280.55x = 3,146.96 × 1,336.21
4. Step 4: Simplify right side
   2,280.55x = 4,204,999.42
5. Step 5: Solve for x
   x = 4,204,999.42/2,280.55
6. Step 6: Final answer
   x = 1,843.86