Finding the Fourth Proportional to 1,231.89, 1,700.00 and 672.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,231.89 : 1,700.00 = 672.37 : x
2. Step 2: Convert to fraction form
   1,231.89/1,700.00 = 672.37/x
3. Step 3: Cross multiply
   1,231.89x = 1,700.00 × 672.37
4. Step 4: Simplify right side
   1,231.89x = 1,143,022.02
5. Step 5: Solve for x
   x = 1,143,022.02/1,231.89
6. Step 6: Final answer
   x = 927.86