Finding the Fourth Proportional to 2,012.53, 2,777.31 and 1,173.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,012.53 : 2,777.31 = 1,173.27 : x
2. Step 2: Convert to fraction form
   2,012.53/2,777.31 = 1,173.27/x
3. Step 3: Cross multiply
   2,012.53x = 2,777.31 × 1,173.27
4. Step 4: Simplify right side
   2,012.53x = 3,258,544.31
5. Step 5: Solve for x
   x = 3,258,544.31/2,012.53
6. Step 6: Final answer
   x = 1,619.13