Finding the Fourth Proportional to 2,584.71, 3,878.69 and 1,353.11

Step by Step Solution

1. Step 1: Write the proportion equation
   2,584.71 : 3,878.69 = 1,353.11 : x
2. Step 2: Convert to fraction form
   2,584.71/3,878.69 = 1,353.11/x
3. Step 3: Cross multiply
   2,584.71x = 3,878.69 × 1,353.11
4. Step 4: Simplify right side
   2,584.71x = 5,248,268.07
5. Step 5: Solve for x
   x = 5,248,268.07/2,584.71
6. Step 6: Final answer
   x = 2,030.51