Finding the Fourth Proportional to 2,613.80, 3,610.48 and 1,949.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.80 : 3,610.48 = 1,949.50 : x
2. Step 2: Convert to fraction form
   2,613.80/3,610.48 = 1,949.50/x
3. Step 3: Cross multiply
   2,613.80x = 3,610.48 × 1,949.50
4. Step 4: Simplify right side
   2,613.80x = 7,038,630.76
5. Step 5: Solve for x
   x = 7,038,630.76/2,613.80
6. Step 6: Final answer
   x = 2,692.87