Finding the Fourth Proportional to 2,589.48, 3,881.12 and 1,491.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,589.48 : 3,881.12 = 1,491.56 : x
2. Step 2: Convert to fraction form
   2,589.48/3,881.12 = 1,491.56/x
3. Step 3: Cross multiply
   2,589.48x = 3,881.12 × 1,491.56
4. Step 4: Simplify right side
   2,589.48x = 5,788,923.35
5. Step 5: Solve for x
   x = 5,788,923.35/2,589.48
6. Step 6: Final answer
   x = 2,235.55