Finding the Fourth Proportional to 5,008.45, 7,513.91 and 1,721.59

Step by Step Solution

1. Step 1: Write the proportion equation
   5,008.45 : 7,513.91 = 1,721.59 : x
2. Step 2: Convert to fraction form
   5,008.45/7,513.91 = 1,721.59/x
3. Step 3: Cross multiply
   5,008.45x = 7,513.91 × 1,721.59
4. Step 4: Simplify right side
   5,008.45x = 12,935,863.71
5. Step 5: Solve for x
   x = 12,935,863.71/5,008.45
6. Step 6: Final answer
   x = 2,582.81