Finding the Fourth Proportional to 2,618.15, 3,922.61 and 1,382.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,618.15 : 3,922.61 = 1,382.83 : x
2. Step 2: Convert to fraction form
   2,618.15/3,922.61 = 1,382.83/x
3. Step 3: Cross multiply
   2,618.15x = 3,922.61 × 1,382.83
4. Step 4: Simplify right side
   2,618.15x = 5,424,302.79
5. Step 5: Solve for x
   x = 5,424,302.79/2,618.15
6. Step 6: Final answer
   x = 2,071.81