Finding the Fourth Proportional to 2,736.83, 4,105.35 and 887.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,736.83 : 4,105.35 = 887.40 : x
2. Step 2: Convert to fraction form
   2,736.83/4,105.35 = 887.40/x
3. Step 3: Cross multiply
   2,736.83x = 4,105.35 × 887.40
4. Step 4: Simplify right side
   2,736.83x = 3,643,087.59
5. Step 5: Solve for x
   x = 3,643,087.59/2,736.83
6. Step 6: Final answer
   x = 1,331.13