Finding the Fourth Proportional to 2,665.71, 3,680.03 and 1,672.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,665.71 : 3,680.03 = 1,672.45 : x
2. Step 2: Convert to fraction form
   2,665.71/3,680.03 = 1,672.45/x
3. Step 3: Cross multiply
   2,665.71x = 3,680.03 × 1,672.45
4. Step 4: Simplify right side
   2,665.71x = 6,154,661.15
5. Step 5: Solve for x
   x = 6,154,661.15/2,665.71
6. Step 6: Final answer
   x = 2,308.83