Finding the Fourth Proportional to 2,013.41, 2,778.57 and 1,173.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,013.41 : 2,778.57 = 1,173.98 : x
2. Step 2: Convert to fraction form
   2,013.41/2,778.57 = 1,173.98/x
3. Step 3: Cross multiply
   2,013.41x = 2,778.57 × 1,173.98
4. Step 4: Simplify right side
   2,013.41x = 3,261,971.72
5. Step 5: Solve for x
   x = 3,261,971.72/2,013.41
6. Step 6: Final answer
   x = 1,620.13