Finding the Fourth Proportional to 2,736.79, 4,105.38 and 888.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,736.79 : 4,105.38 = 888.20 : x
2. Step 2: Convert to fraction form
   2,736.79/4,105.38 = 888.20/x
3. Step 3: Cross multiply
   2,736.79x = 4,105.38 × 888.20
4. Step 4: Simplify right side
   2,736.79x = 3,646,396.72
5. Step 5: Solve for x
   x = 3,646,396.72/2,736.79
6. Step 6: Final answer
   x = 1,332.36