Finding the Fourth Proportional to 2,368.88, 3,555.18 and 1,643.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,368.88 : 3,555.18 = 1,643.56 : x
2. Step 2: Convert to fraction form
   2,368.88/3,555.18 = 1,643.56/x
3. Step 3: Cross multiply
   2,368.88x = 3,555.18 × 1,643.56
4. Step 4: Simplify right side
   2,368.88x = 5,843,151.64
5. Step 5: Solve for x
   x = 5,843,151.64/2,368.88
6. Step 6: Final answer
   x = 2,466.63