Finding the Fourth Proportional to 1,041.56, 1,560.72 and 656

Step by Step Solution

1. Step 1: Write the proportion equation
   1,041.56 : 1,560.72 = 656 : x
2. Step 2: Convert to fraction form
   1,041.56/1,560.72 = 656/x
3. Step 3: Cross multiply
   1,041.56x = 1,560.72 × 656
4. Step 4: Simplify right side
   1,041.56x = 1,023,832.32
5. Step 5: Solve for x
   x = 1,023,832.32/1,041.56
6. Step 6: Final answer
   x = 982.98