Finding the Fourth Proportional to 3,624.48, 5,434.56 and 1,890.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,624.48 : 5,434.56 = 1,890.72 : x
2. Step 2: Convert to fraction form
   3,624.48/5,434.56 = 1,890.72/x
3. Step 3: Cross multiply
   3,624.48x = 5,434.56 × 1,890.72
4. Step 4: Simplify right side
   3,624.48x = 10,275,231.28
5. Step 5: Solve for x
   x = 10,275,231.28/3,624.48
6. Step 6: Final answer
   x = 2,834.95