Finding the Fourth Proportional to 5,154.63, 7,112.79 and 2,886.10

Step by Step Solution

1. Step 1: Write the proportion equation
   5,154.63 : 7,112.79 = 2,886.10 : x
2. Step 2: Convert to fraction form
   5,154.63/7,112.79 = 2,886.10/x
3. Step 3: Cross multiply
   5,154.63x = 7,112.79 × 2,886.10
4. Step 4: Simplify right side
   5,154.63x = 20,528,189.33
5. Step 5: Solve for x
   x = 20,528,189.33/5,154.63
6. Step 6: Final answer
   x = 3,982.48