Finding the Fourth Proportional to 2,338.56, 3,510.72 and 1,658.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,338.56 : 3,510.72 = 1,658.88 : x
2. Step 2: Convert to fraction form
   2,338.56/3,510.72 = 1,658.88/x
3. Step 3: Cross multiply
   2,338.56x = 3,510.72 × 1,658.88
4. Step 4: Simplify right side
   2,338.56x = 5,823,863.19
5. Step 5: Solve for x
   x = 5,823,863.19/2,338.56
6. Step 6: Final answer
   x = 2,490.36