Finding the Fourth Proportional to 1,667.89, 2,501.79 and 693.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.89 : 2,501.79 = 693.73 : x
2. Step 2: Convert to fraction form
   1,667.89/2,501.79 = 693.73/x
3. Step 3: Cross multiply
   1,667.89x = 2,501.79 × 693.73
4. Step 4: Simplify right side
   1,667.89x = 1,735,566.78
5. Step 5: Solve for x
   x = 1,735,566.78/1,667.89
6. Step 6: Final answer
   x = 1,040.58