Finding the Fourth Proportional to 2,434.41, 3,357.72 and 1,688.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,434.41 : 3,357.72 = 1,688.40 : x
2. Step 2: Convert to fraction form
   2,434.41/3,357.72 = 1,688.40/x
3. Step 3: Cross multiply
   2,434.41x = 3,357.72 × 1,688.40
4. Step 4: Simplify right side
   2,434.41x = 5,669,174.45
5. Step 5: Solve for x
   x = 5,669,174.45/2,434.41
6. Step 6: Final answer
   x = 2,328.77