Finding the Fourth Proportional to 3,666.17, 5,059.25 and 2,072.79

Step by Step Solution

1. Step 1: Write the proportion equation
   3,666.17 : 5,059.25 = 2,072.79 : x
2. Step 2: Convert to fraction form
   3,666.17/5,059.25 = 2,072.79/x
3. Step 3: Cross multiply
   3,666.17x = 5,059.25 × 2,072.79
4. Step 4: Simplify right side
   3,666.17x = 10,486,762.81
5. Step 5: Solve for x
   x = 10,486,762.81/3,666.17
6. Step 6: Final answer
   x = 2,860.41