Finding the Fourth Proportional to 2,455.67, 3,388.72 and 1,336.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,455.67 : 3,388.72 = 1,336.61 : x
2. Step 2: Convert to fraction form
   2,455.67/3,388.72 = 1,336.61/x
3. Step 3: Cross multiply
   2,455.67x = 3,388.72 × 1,336.61
4. Step 4: Simplify right side
   2,455.67x = 4,529,397.04
5. Step 5: Solve for x
   x = 4,529,397.04/2,455.67
6. Step 6: Final answer
   x = 1,844.46