Finding the Fourth Proportional to 2,212.30, 3,314.76 and 1,170.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,212.30 : 3,314.76 = 1,170.82 : x
2. Step 2: Convert to fraction form
   2,212.30/3,314.76 = 1,170.82/x
3. Step 3: Cross multiply
   2,212.30x = 3,314.76 × 1,170.82
4. Step 4: Simplify right side
   2,212.30x = 3,880,987.30
5. Step 5: Solve for x
   x = 3,880,987.30/2,212.30
6. Step 6: Final answer
   x = 1,754.28