Finding the Fourth Proportional to 3,561.25, 4,914.72 and 2,164

Step by Step Solution

1. Step 1: Write the proportion equation
   3,561.25 : 4,914.72 = 2,164 : x
2. Step 2: Convert to fraction form
   3,561.25/4,914.72 = 2,164/x
3. Step 3: Cross multiply
   3,561.25x = 4,914.72 × 2,164
4. Step 4: Simplify right side
   3,561.25x = 10,635,454.08
5. Step 5: Solve for x
   x = 10,635,454.08/3,561.25
6. Step 6: Final answer
   x = 2,986.44