Finding the Fourth Proportional to 3,967.06, 5,475.03 and 2,288.47

Step by Step Solution

1. Step 1: Write the proportion equation
   3,967.06 : 5,475.03 = 2,288.47 : x
2. Step 2: Convert to fraction form
   3,967.06/5,475.03 = 2,288.47/x
3. Step 3: Cross multiply
   3,967.06x = 5,475.03 × 2,288.47
4. Step 4: Simplify right side
   3,967.06x = 12,529,429.90
5. Step 5: Solve for x
   x = 12,529,429.90/3,967.06
6. Step 6: Final answer
   x = 3,158.37