Finding the Fourth Proportional to 2,543.16, 3,815.81 and 2,338.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,543.16 : 3,815.81 = 2,338.82 : x
2. Step 2: Convert to fraction form
   2,543.16/3,815.81 = 2,338.82/x
3. Step 3: Cross multiply
   2,543.16x = 3,815.81 × 2,338.82
4. Step 4: Simplify right side
   2,543.16x = 8,924,506.51
5. Step 5: Solve for x
   x = 8,924,506.51/2,543.16
6. Step 6: Final answer
   x = 3,509.21