Finding the Fourth Proportional to 1,906.56, 2,859.72 and 673.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,906.56 : 2,859.72 = 673.86 : x
2. Step 2: Convert to fraction form
   1,906.56/2,859.72 = 673.86/x
3. Step 3: Cross multiply
   1,906.56x = 2,859.72 × 673.86
4. Step 4: Simplify right side
   1,906.56x = 1,927,050.92
5. Step 5: Solve for x
   x = 1,927,050.92/1,906.56
6. Step 6: Final answer
   x = 1,010.75