Finding the Fourth Proportional to 2,012.85, 2,778.03 and 1,173.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,012.85 : 2,778.03 = 1,173.69 : x
2. Step 2: Convert to fraction form
   2,012.85/2,778.03 = 1,173.69/x
3. Step 3: Cross multiply
   2,012.85x = 2,778.03 × 1,173.69
4. Step 4: Simplify right side
   2,012.85x = 3,260,546.03
5. Step 5: Solve for x
   x = 3,260,546.03/2,012.85
6. Step 6: Final answer
   x = 1,619.87