Finding the Fourth Proportional to 5,404.81, 8,103.16 and 2,288.47

Step by Step Solution

1. Step 1: Write the proportion equation
   5,404.81 : 8,103.16 = 2,288.47 : x
2. Step 2: Convert to fraction form
   5,404.81/8,103.16 = 2,288.47/x
3. Step 3: Cross multiply
   5,404.81x = 8,103.16 × 2,288.47
4. Step 4: Simplify right side
   5,404.81x = 18,543,838.57
5. Step 5: Solve for x
   x = 18,543,838.57/5,404.81
6. Step 6: Final answer
   x = 3,430.99