Finding the Fourth Proportional to 2,209.51, 3,314.18 and 892.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,209.51 : 3,314.18 = 892.89 : x
2. Step 2: Convert to fraction form
   2,209.51/3,314.18 = 892.89/x
3. Step 3: Cross multiply
   2,209.51x = 3,314.18 × 892.89
4. Step 4: Simplify right side
   2,209.51x = 2,959,200.41
5. Step 5: Solve for x
   x = 2,959,200.41/2,209.51
6. Step 6: Final answer
   x = 1,339.30