Finding the Fourth Proportional to 1,667.92, 2,502.96 and 694.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.92 : 2,502.96 = 694.72 : x
2. Step 2: Convert to fraction form
   1,667.92/2,502.96 = 694.72/x
3. Step 3: Cross multiply
   1,667.92x = 2,502.96 × 694.72
4. Step 4: Simplify right side
   1,667.92x = 1,738,856.37
5. Step 5: Solve for x
   x = 1,738,856.37/1,667.92
6. Step 6: Final answer
   x = 1,042.53