Finding the Fourth Proportional to 2,736.77, 4,104.81 and 887.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,736.77 : 4,104.81 = 887.72 : x
2. Step 2: Convert to fraction form
   2,736.77/4,104.81 = 887.72/x
3. Step 3: Cross multiply
   2,736.77x = 4,104.81 × 887.72
4. Step 4: Simplify right side
   2,736.77x = 3,643,921.93
5. Step 5: Solve for x
   x = 3,643,921.93/2,736.77
6. Step 6: Final answer
   x = 1,331.47