Finding the Fourth Proportional to 2,673.31, 3,689.14 and 1,478.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,673.31 : 3,689.14 = 1,478.38 : x
2. Step 2: Convert to fraction form
   2,673.31/3,689.14 = 1,478.38/x
3. Step 3: Cross multiply
   2,673.31x = 3,689.14 × 1,478.38
4. Step 4: Simplify right side
   2,673.31x = 5,453,950.79
5. Step 5: Solve for x
   x = 5,453,950.79/2,673.31
6. Step 6: Final answer
   x = 2,040.15