Finding the Fourth Proportional to 1,707.37, 2,559.18 and 667.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,707.37 : 2,559.18 = 667.06 : x
2. Step 2: Convert to fraction form
   1,707.37/2,559.18 = 667.06/x
3. Step 3: Cross multiply
   1,707.37x = 2,559.18 × 667.06
4. Step 4: Simplify right side
   1,707.37x = 1,707,126.61
5. Step 5: Solve for x
   x = 1,707,126.61/1,707.37
6. Step 6: Final answer
   x = 999.86