Finding the Fourth Proportional to 2,911.41, 4,018.82 and 1,866.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,911.41 : 4,018.82 = 1,866.51 : x
2. Step 2: Convert to fraction form
   2,911.41/4,018.82 = 1,866.51/x
3. Step 3: Cross multiply
   2,911.41x = 4,018.82 × 1,866.51
4. Step 4: Simplify right side
   2,911.41x = 7,501,158.39
5. Step 5: Solve for x
   x = 7,501,158.39/2,911.41
6. Step 6: Final answer
   x = 2,576.47