Finding the Fourth Proportional to 3,666.06, 5,057.78 and 2,407.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,666.06 : 5,057.78 = 2,407.82 : x
2. Step 2: Convert to fraction form
   3,666.06/5,057.78 = 2,407.82/x
3. Step 3: Cross multiply
   3,666.06x = 5,057.78 × 2,407.82
4. Step 4: Simplify right side
   3,666.06x = 12,178,186.51
5. Step 5: Solve for x
   x = 12,178,186.51/3,666.06
6. Step 6: Final answer
   x = 3,321.87