Finding the Fourth Proportional to 2,389.32, 3,583.89 and 745.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,389.32 : 3,583.89 = 745.83 : x
2. Step 2: Convert to fraction form
   2,389.32/3,583.89 = 745.83/x
3. Step 3: Cross multiply
   2,389.32x = 3,583.89 × 745.83
4. Step 4: Simplify right side
   2,389.32x = 2,672,972.68
5. Step 5: Solve for x
   x = 2,672,972.68/2,389.32
6. Step 6: Final answer
   x = 1,118.72