Finding the Fourth Proportional to 1,676.30, 2,513.52 and 580.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,676.30 : 2,513.52 = 580.56 : x
2. Step 2: Convert to fraction form
   1,676.30/2,513.52 = 580.56/x
3. Step 3: Cross multiply
   1,676.30x = 2,513.52 × 580.56
4. Step 4: Simplify right side
   1,676.30x = 1,459,249.17
5. Step 5: Solve for x
   x = 1,459,249.17/1,676.30
6. Step 6: Final answer
   x = 870.52