Finding the Fourth Proportional to 2,531.22, 3,796.88 and 887.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,531.22 : 3,796.88 = 887.79 : x
2. Step 2: Convert to fraction form
   2,531.22/3,796.88 = 887.79/x
3. Step 3: Cross multiply
   2,531.22x = 3,796.88 × 887.79
4. Step 4: Simplify right side
   2,531.22x = 3,370,809.86
5. Step 5: Solve for x
   x = 3,370,809.86/2,531.22
6. Step 6: Final answer
   x = 1,331.69