Finding the Fourth Proportional to 2,461.76, 3,690.69 and 1,228.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,461.76 : 3,690.69 = 1,228.49 : x
2. Step 2: Convert to fraction form
   2,461.76/3,690.69 = 1,228.49/x
3. Step 3: Cross multiply
   2,461.76x = 3,690.69 × 1,228.49
4. Step 4: Simplify right side
   2,461.76x = 4,533,957.30
5. Step 5: Solve for x
   x = 4,533,957.30/2,461.76
6. Step 6: Final answer
   x = 1,841.76