Finding the Fourth Proportional to 2,436.96, 3,657.60 and 2,091.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,436.96 : 3,657.60 = 2,091.36 : x
2. Step 2: Convert to fraction form
   2,436.96/3,657.60 = 2,091.36/x
3. Step 3: Cross multiply
   2,436.96x = 3,657.60 × 2,091.36
4. Step 4: Simplify right side
   2,436.96x = 7,649,358.34
5. Step 5: Solve for x
   x = 7,649,358.34/2,436.96
6. Step 6: Final answer
   x = 3,138.89