Finding the Fourth Proportional to 2,613.58, 3,919.11 and 1,382.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.58 : 3,919.11 = 1,382.38 : x
2. Step 2: Convert to fraction form
   2,613.58/3,919.11 = 1,382.38/x
3. Step 3: Cross multiply
   2,613.58x = 3,919.11 × 1,382.38
4. Step 4: Simplify right side
   2,613.58x = 5,417,699.28
5. Step 5: Solve for x
   x = 5,417,699.28/2,613.58
6. Step 6: Final answer
   x = 2,072.90