Finding the Fourth Proportional to 2,012.29, 2,777.70 and 1,173.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,012.29 : 2,777.70 = 1,173.25 : x
2. Step 2: Convert to fraction form
   2,012.29/2,777.70 = 1,173.25/x
3. Step 3: Cross multiply
   2,012.29x = 2,777.70 × 1,173.25
4. Step 4: Simplify right side
   2,012.29x = 3,258,944.40
5. Step 5: Solve for x
   x = 3,258,944.40/2,012.29
6. Step 6: Final answer
   x = 1,619.52