Finding the Fourth Proportional to 3,758.78, 5,630.88 and 2,898.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,758.78 : 5,630.88 = 2,898.56 : x
2. Step 2: Convert to fraction form
   3,758.78/5,630.88 = 2,898.56/x
3. Step 3: Cross multiply
   3,758.78x = 5,630.88 × 2,898.56
4. Step 4: Simplify right side
   3,758.78x = 16,321,443.53
5. Step 5: Solve for x
   x = 16,321,443.53/3,758.78
6. Step 6: Final answer
   x = 4,342.22