Finding the Fourth Proportional to 1,667.41, 2,301.01 and 921.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.41 : 2,301.01 = 921.38 : x
2. Step 2: Convert to fraction form
   1,667.41/2,301.01 = 921.38/x
3. Step 3: Cross multiply
   1,667.41x = 2,301.01 × 921.38
4. Step 4: Simplify right side
   1,667.41x = 2,120,107.53
5. Step 5: Solve for x
   x = 2,120,107.53/1,667.41
6. Step 6: Final answer
   x = 1,271.50