Finding the Fourth Proportional to 2,539.98, 3,506.76 and 1,658.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,539.98 : 3,506.76 = 1,658.25 : x
2. Step 2: Convert to fraction form
   2,539.98/3,506.76 = 1,658.25/x
3. Step 3: Cross multiply
   2,539.98x = 3,506.76 × 1,658.25
4. Step 4: Simplify right side
   2,539.98x = 5,815,084.77
5. Step 5: Solve for x
   x = 5,815,084.77/2,539.98
6. Step 6: Final answer
   x = 2,289.42