Finding the Fourth Proportional to 8,898.56, 13,348.50 and 2,658.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,898.56 : 13,348.50 = 2,658.42 : x
2. Step 2: Convert to fraction form
   8,898.56/13,348.50 = 2,658.42/x
3. Step 3: Cross multiply
   8,898.56x = 13,348.50 × 2,658.42
4. Step 4: Simplify right side
   8,898.56x = 35,485,909.40
5. Step 5: Solve for x
   x = 35,485,909.40/8,898.56
6. Step 6: Final answer
   x = 3,987.83