Finding the Fourth Proportional to 1,667.12, 2,496.60 and 844.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.12 : 2,496.60 = 844.16 : x
2. Step 2: Convert to fraction form
   1,667.12/2,496.60 = 844.16/x
3. Step 3: Cross multiply
   1,667.12x = 2,496.60 × 844.16
4. Step 4: Simplify right side
   1,667.12x = 2,107,529.86
5. Step 5: Solve for x
   x = 2,107,529.86/1,667.12
6. Step 6: Final answer
   x = 1,264.17