Finding the Fourth Proportional to 1,667.12, 2,300.67 and 1,004.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.12 : 2,300.67 = 1,004.00 : x
2. Step 2: Convert to fraction form
   1,667.12/2,300.67 = 1,004.00/x
3. Step 3: Cross multiply
   1,667.12x = 2,300.67 × 1,004.00
4. Step 4: Simplify right side
   1,667.12x = 2,309,861.18
5. Step 5: Solve for x
   x = 2,309,861.18/1,667.12
6. Step 6: Final answer
   x = 1,385.54