Finding the Fourth Proportional to 2,012.53, 3,018.69 and 551.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,012.53 : 3,018.69 = 551.58 : x
2. Step 2: Convert to fraction form
   2,012.53/3,018.69 = 551.58/x
3. Step 3: Cross multiply
   2,012.53x = 3,018.69 × 551.58
4. Step 4: Simplify right side
   2,012.53x = 1,665,049.03
5. Step 5: Solve for x
   x = 1,665,049.03/2,012.53
6. Step 6: Final answer
   x = 827.34