Finding the Fourth Proportional to 1,667.22, 2,498.06 and 886.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.22 : 2,498.06 = 886.12 : x
2. Step 2: Convert to fraction form
   1,667.22/2,498.06 = 886.12/x
3. Step 3: Cross multiply
   1,667.22x = 2,498.06 × 886.12
4. Step 4: Simplify right side
   1,667.22x = 2,213,580.93
5. Step 5: Solve for x
   x = 2,213,580.93/1,667.22
6. Step 6: Final answer
   x = 1,327.71