Finding the Fourth Proportional to 2,736.89, 4,104.47 and 887.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,736.89 : 4,104.47 = 887.57 : x
2. Step 2: Convert to fraction form
   2,736.89/4,104.47 = 887.57/x
3. Step 3: Cross multiply
   2,736.89x = 4,104.47 × 887.57
4. Step 4: Simplify right side
   2,736.89x = 3,643,024.61
5. Step 5: Solve for x
   x = 3,643,024.61/2,736.89
6. Step 6: Final answer
   x = 1,331.08