Finding the Fourth Proportional to 2,390.72, 3,298.27 and 1,762.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,390.72 : 3,298.27 = 1,762.73 : x
2. Step 2: Convert to fraction form
   2,390.72/3,298.27 = 1,762.73/x
3. Step 3: Cross multiply
   2,390.72x = 3,298.27 × 1,762.73
4. Step 4: Simplify right side
   2,390.72x = 5,813,972.81
5. Step 5: Solve for x
   x = 5,813,972.81/2,390.72
6. Step 6: Final answer
   x = 2,431.89