Finding the Fourth Proportional to 2,389.60, 3,584.76 and 746.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,389.60 : 3,584.76 = 746.28 : x
2. Step 2: Convert to fraction form
   2,389.60/3,584.76 = 746.28/x
3. Step 3: Cross multiply
   2,389.60x = 3,584.76 × 746.28
4. Step 4: Simplify right side
   2,389.60x = 2,675,234.69
5. Step 5: Solve for x
   x = 2,675,234.69/2,389.60
6. Step 6: Final answer
   x = 1,119.53