Finding the Fourth Proportional to 2,673.86, 3,689.77 and 1,478.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,673.86 : 3,689.77 = 1,478.77 : x
2. Step 2: Convert to fraction form
   2,673.86/3,689.77 = 1,478.77/x
3. Step 3: Cross multiply
   2,673.86x = 3,689.77 × 1,478.77
4. Step 4: Simplify right side
   2,673.86x = 5,456,308.26
5. Step 5: Solve for x
   x = 5,456,308.26/2,673.86
6. Step 6: Final answer
   x = 2,040.61