Finding the Fourth Proportional to 2,434.16, 3,357.80 and 1,688.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,434.16 : 3,357.80 = 1,688.56 : x
2. Step 2: Convert to fraction form
   2,434.16/3,357.80 = 1,688.56/x
3. Step 3: Cross multiply
   2,434.16x = 3,357.80 × 1,688.56
4. Step 4: Simplify right side
   2,434.16x = 5,669,846.77
5. Step 5: Solve for x
   x = 5,669,846.77/2,434.16
6. Step 6: Final answer
   x = 2,329.28