Finding the Fourth Proportional to 2,279.80, 3,137.98 and 1,615.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,279.80 : 3,137.98 = 1,615.52 : x
2. Step 2: Convert to fraction form
   2,279.80/3,137.98 = 1,615.52/x
3. Step 3: Cross multiply
   2,279.80x = 3,137.98 × 1,615.52
4. Step 4: Simplify right side
   2,279.80x = 5,069,469.45
5. Step 5: Solve for x
   x = 5,069,469.45/2,279.80
6. Step 6: Final answer
   x = 2,223.65