Finding the Fourth Proportional to 2,300.40, 3,447.36 and 1,722.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,300.40 : 3,447.36 = 1,722.60 : x
2. Step 2: Convert to fraction form
   2,300.40/3,447.36 = 1,722.60/x
3. Step 3: Cross multiply
   2,300.40x = 3,447.36 × 1,722.60
4. Step 4: Simplify right side
   2,300.40x = 5,938,422.34
5. Step 5: Solve for x
   x = 5,938,422.34/2,300.40
6. Step 6: Final answer
   x = 2,581.47