Finding the Fourth Proportional to 4,945.86, 7,417.58 and 1,658.88

Step by Step Solution

1. Step 1: Write the proportion equation
   4,945.86 : 7,417.58 = 1,658.88 : x
2. Step 2: Convert to fraction form
   4,945.86/7,417.58 = 1,658.88/x
3. Step 3: Cross multiply
   4,945.86x = 7,417.58 × 1,658.88
4. Step 4: Simplify right side
   4,945.86x = 12,304,866.82
5. Step 5: Solve for x
   x = 12,304,866.82/4,945.86
6. Step 6: Final answer
   x = 2,487.91