Finding the Fourth Proportional to 2,115.89, 2,919.93 and 1,184.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,115.89 : 2,919.93 = 1,184.39 : x
2. Step 2: Convert to fraction form
   2,115.89/2,919.93 = 1,184.39/x
3. Step 3: Cross multiply
   2,115.89x = 2,919.93 × 1,184.39
4. Step 4: Simplify right side
   2,115.89x = 3,458,335.89
5. Step 5: Solve for x
   x = 3,458,335.89/2,115.89
6. Step 6: Final answer
   x = 1,634.46