Finding the Fourth Proportional to 1,786.56, 2,678.76 and 746.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,786.56 : 2,678.76 = 746.24 : x
2. Step 2: Convert to fraction form
   1,786.56/2,678.76 = 746.24/x
3. Step 3: Cross multiply
   1,786.56x = 2,678.76 × 746.24
4. Step 4: Simplify right side
   1,786.56x = 1,998,997.86
5. Step 5: Solve for x
   x = 1,998,997.86/1,786.56
6. Step 6: Final answer
   x = 1,118.91