Finding the Fourth Proportional to 2,389.83, 3,583.77 and 745.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,389.83 : 3,583.77 = 745.86 : x
2. Step 2: Convert to fraction form
   2,389.83/3,583.77 = 745.86/x
3. Step 3: Cross multiply
   2,389.83x = 3,583.77 × 745.86
4. Step 4: Simplify right side
   2,389.83x = 2,672,990.69
5. Step 5: Solve for x
   x = 2,672,990.69/2,389.83
6. Step 6: Final answer
   x = 1,118.49