Finding the Fourth Proportional to 3,976.86, 5,488.03 and 2,298.26

Step by Step Solution

1. Step 1: Write the proportion equation
   3,976.86 : 5,488.03 = 2,298.26 : x
2. Step 2: Convert to fraction form
   3,976.86/5,488.03 = 2,298.26/x
3. Step 3: Cross multiply
   3,976.86x = 5,488.03 × 2,298.26
4. Step 4: Simplify right side
   3,976.86x = 12,612,927.80
5. Step 5: Solve for x
   x = 12,612,927.80/3,976.86
6. Step 6: Final answer
   x = 3,171.58