Finding the Fourth Proportional to 1,667.37, 2,299.90 and 1,004.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.37 : 2,299.90 = 1,004.43 : x
2. Step 2: Convert to fraction form
   1,667.37/2,299.90 = 1,004.43/x
3. Step 3: Cross multiply
   1,667.37x = 2,299.90 × 1,004.43
4. Step 4: Simplify right side
   1,667.37x = 2,310,088.56
5. Step 5: Solve for x
   x = 2,310,088.56/1,667.37
6. Step 6: Final answer
   x = 1,385.47