Finding the Fourth Proportional to 2,415.50, 3,616.20 and 1,488.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,415.50 : 3,616.20 = 1,488.27 : x
2. Step 2: Convert to fraction form
   2,415.50/3,616.20 = 1,488.27/x
3. Step 3: Cross multiply
   2,415.50x = 3,616.20 × 1,488.27
4. Step 4: Simplify right side
   2,415.50x = 5,381,881.97
5. Step 5: Solve for x
   x = 5,381,881.97/2,415.50
6. Step 6: Final answer
   x = 2,228.07