Finding the Fourth Proportional to 2,443.55, 3,370.35 and 1,687.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.55 : 3,370.35 = 1,687.62 : x
2. Step 2: Convert to fraction form
   2,443.55/3,370.35 = 1,687.62/x
3. Step 3: Cross multiply
   2,443.55x = 3,370.35 × 1,687.62
4. Step 4: Simplify right side
   2,443.55x = 5,687,870.07
5. Step 5: Solve for x
   x = 5,687,870.07/2,443.55
6. Step 6: Final answer
   x = 2,327.71