Finding the Fourth Proportional to 2,619.40, 3,614.04 and 1,624.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,619.40 : 3,614.04 = 1,624.72 : x
2. Step 2: Convert to fraction form
   2,619.40/3,614.04 = 1,624.72/x
3. Step 3: Cross multiply
   2,619.40x = 3,614.04 × 1,624.72
4. Step 4: Simplify right side
   2,619.40x = 5,871,803.07
5. Step 5: Solve for x
   x = 5,871,803.07/2,619.40
6. Step 6: Final answer
   x = 2,241.66