Finding the Fourth Proportional to 2,111.37, 3,167.16 and 551.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.37 : 3,167.16 = 551.37 : x
2. Step 2: Convert to fraction form
   2,111.37/3,167.16 = 551.37/x
3. Step 3: Cross multiply
   2,111.37x = 3,167.16 × 551.37
4. Step 4: Simplify right side
   2,111.37x = 1,746,261.17
5. Step 5: Solve for x
   x = 1,746,261.17/2,111.37
6. Step 6: Final answer
   x = 827.08