Finding the Fourth Proportional to 3,676.30, 5,513.27 and 1,210.53

Step by Step Solution

1. Step 1: Write the proportion equation
   3,676.30 : 5,513.27 = 1,210.53 : x
2. Step 2: Convert to fraction form
   3,676.30/5,513.27 = 1,210.53/x
3. Step 3: Cross multiply
   3,676.30x = 5,513.27 × 1,210.53
4. Step 4: Simplify right side
   3,676.30x = 6,673,978.73
5. Step 5: Solve for x
   x = 6,673,978.73/3,676.30
6. Step 6: Final answer
   x = 1,815.41