Finding the Fourth Proportional to 2,387.45, 3,293.71 and 1,722.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,387.45 : 3,293.71 = 1,722.84 : x
2. Step 2: Convert to fraction form
   2,387.45/3,293.71 = 1,722.84/x
3. Step 3: Cross multiply
   2,387.45x = 3,293.71 × 1,722.84
4. Step 4: Simplify right side
   2,387.45x = 5,674,535.34
5. Step 5: Solve for x
   x = 5,674,535.34/2,387.45
6. Step 6: Final answer
   x = 2,376.82