Finding the Fourth Proportional to 2,013.98, 2,778.81 and 1,174.19

Step by Step Solution

1. Step 1: Write the proportion equation
   2,013.98 : 2,778.81 = 1,174.19 : x
2. Step 2: Convert to fraction form
   2,013.98/2,778.81 = 1,174.19/x
3. Step 3: Cross multiply
   2,013.98x = 2,778.81 × 1,174.19
4. Step 4: Simplify right side
   2,013.98x = 3,262,837.02
5. Step 5: Solve for x
   x = 3,262,837.02/2,013.98
6. Step 6: Final answer
   x = 1,620.10