Finding the Fourth Proportional to 1,667.92, 2,501.34 and 694.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.92 : 2,501.34 = 694.30 : x
2. Step 2: Convert to fraction form
   1,667.92/2,501.34 = 694.30/x
3. Step 3: Cross multiply
   1,667.92x = 2,501.34 × 694.30
4. Step 4: Simplify right side
   1,667.92x = 1,736,680.36
5. Step 5: Solve for x
   x = 1,736,680.36/1,667.92
6. Step 6: Final answer
   x = 1,041.23