Finding the Fourth Proportional to 2,012.59, 2,777.25 and 1,173.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,012.59 : 2,777.25 = 1,173.26 : x
2. Step 2: Convert to fraction form
   2,012.59/2,777.25 = 1,173.26/x
3. Step 3: Cross multiply
   2,012.59x = 2,777.25 × 1,173.26
4. Step 4: Simplify right side
   2,012.59x = 3,258,436.34
5. Step 5: Solve for x
   x = 3,258,436.34/2,012.59
6. Step 6: Final answer
   x = 1,619.03