Finding the Fourth Proportional to 2,386.93, 3,289.42 and 1,722.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,386.93 : 3,289.42 = 1,722.59 : x
2. Step 2: Convert to fraction form
   2,386.93/3,289.42 = 1,722.59/x
3. Step 3: Cross multiply
   2,386.93x = 3,289.42 × 1,722.59
4. Step 4: Simplify right side
   2,386.93x = 5,666,322.00
5. Step 5: Solve for x
   x = 5,666,322.00/2,386.93
6. Step 6: Final answer
   x = 2,373.90