Finding the Fourth Proportional to 2,405.75, 3,319.71 and 1,343.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,405.75 : 3,319.71 = 1,343.43 : x
2. Step 2: Convert to fraction form
   2,405.75/3,319.71 = 1,343.43/x
3. Step 3: Cross multiply
   2,405.75x = 3,319.71 × 1,343.43
4. Step 4: Simplify right side
   2,405.75x = 4,459,798.01
5. Step 5: Solve for x
   x = 4,459,798.01/2,405.75
6. Step 6: Final answer
   x = 1,853.81