Finding the Fourth Proportional to 2,886.48, 3,981.69 and 2,692.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,886.48 : 3,981.69 = 2,692.08 : x
2. Step 2: Convert to fraction form
   2,886.48/3,981.69 = 2,692.08/x
3. Step 3: Cross multiply
   2,886.48x = 3,981.69 × 2,692.08
4. Step 4: Simplify right side
   2,886.48x = 10,719,028.02
5. Step 5: Solve for x
   x = 10,719,028.02/2,886.48
6. Step 6: Final answer
   x = 3,713.53