Finding the Fourth Proportional to 2,531.82, 3,796.31 and 887.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,531.82 : 3,796.31 = 887.72 : x
2. Step 2: Convert to fraction form
   2,531.82/3,796.31 = 887.72/x
3. Step 3: Cross multiply
   2,531.82x = 3,796.31 × 887.72
4. Step 4: Simplify right side
   2,531.82x = 3,370,072.02
5. Step 5: Solve for x
   x = 3,370,072.02/2,531.82
6. Step 6: Final answer
   x = 1,331.09