Finding the Fourth Proportional to 1,825.47, 2,720.86 and 1,721.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,825.47 : 2,720.86 = 1,721.69 : x
2. Step 2: Convert to fraction form
   1,825.47/2,720.86 = 1,721.69/x
3. Step 3: Cross multiply
   1,825.47x = 2,720.86 × 1,721.69
4. Step 4: Simplify right side
   1,825.47x = 4,684,477.45
5. Step 5: Solve for x
   x = 4,684,477.45/1,825.47
6. Step 6: Final answer
   x = 2,566.18