Finding the Fourth Proportional to 2,111.49, 3,167.42 and 551.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.49 : 3,167.42 = 551.48 : x
2. Step 2: Convert to fraction form
   2,111.49/3,167.42 = 551.48/x
3. Step 3: Cross multiply
   2,111.49x = 3,167.42 × 551.48
4. Step 4: Simplify right side
   2,111.49x = 1,746,771.11
5. Step 5: Solve for x
   x = 1,746,771.11/2,111.49
6. Step 6: Final answer
   x = 827.27