Finding the Fourth Proportional to 2,436.89, 3,656.81 and 975.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,436.89 : 3,656.81 = 975.78 : x
2. Step 2: Convert to fraction form
   2,436.89/3,656.81 = 975.78/x
3. Step 3: Cross multiply
   2,436.89x = 3,656.81 × 975.78
4. Step 4: Simplify right side
   2,436.89x = 3,568,244.50
5. Step 5: Solve for x
   x = 3,568,244.50/2,436.89
6. Step 6: Final answer
   x = 1,464.26