Finding the Fourth Proportional to 5,406.89, 8,104.86 and 2,633.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,406.89 : 8,104.86 = 2,633.72 : x
2. Step 2: Convert to fraction form
   5,406.89/8,104.86 = 2,633.72/x
3. Step 3: Cross multiply
   5,406.89x = 8,104.86 × 2,633.72
4. Step 4: Simplify right side
   5,406.89x = 21,345,891.35
5. Step 5: Solve for x
   x = 21,345,891.35/5,406.89
6. Step 6: Final answer
   x = 3,947.91