Finding the Fourth Proportional to 1,667.10, 2,301.03 and 1,004.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.10 : 2,301.03 = 1,004.70 : x
2. Step 2: Convert to fraction form
   1,667.10/2,301.03 = 1,004.70/x
3. Step 3: Cross multiply
   1,667.10x = 2,301.03 × 1,004.70
4. Step 4: Simplify right side
   1,667.10x = 2,311,844.84
5. Step 5: Solve for x
   x = 2,311,844.84/1,667.10
6. Step 6: Final answer
   x = 1,386.75