Finding the Fourth Proportional to 3,967.72, 5,475.50 and 2,289.47

Step by Step Solution

1. Step 1: Write the proportion equation
   3,967.72 : 5,475.50 = 2,289.47 : x
2. Step 2: Convert to fraction form
   3,967.72/5,475.50 = 2,289.47/x
3. Step 3: Cross multiply
   3,967.72x = 5,475.50 × 2,289.47
4. Step 4: Simplify right side
   3,967.72x = 12,536,008.95
5. Step 5: Solve for x
   x = 12,536,008.95/3,967.72
6. Step 6: Final answer
   x = 3,159.50