Finding the Fourth Proportional to 1,667.99, 2,502.30 and 694.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.99 : 2,502.30 = 694.17 : x
2. Step 2: Convert to fraction form
   1,667.99/2,502.30 = 694.17/x
3. Step 3: Cross multiply
   1,667.99x = 2,502.30 × 694.17
4. Step 4: Simplify right side
   1,667.99x = 1,737,021.59
5. Step 5: Solve for x
   x = 1,737,021.59/1,667.99
6. Step 6: Final answer
   x = 1,041.39