Finding the Fourth Proportional to 1,667.54, 2,302.12 and 1,038.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.54 : 2,302.12 = 1,038.61 : x
2. Step 2: Convert to fraction form
   1,667.54/2,302.12 = 1,038.61/x
3. Step 3: Cross multiply
   1,667.54x = 2,302.12 × 1,038.61
4. Step 4: Simplify right side
   1,667.54x = 2,391,004.85
5. Step 5: Solve for x
   x = 2,391,004.85/1,667.54
6. Step 6: Final answer
   x = 1,433.85