Finding the Fourth Proportional to 2,986.56, 4,481.89 and 1,038.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,986.56 : 4,481.89 = 1,038.76 : x
2. Step 2: Convert to fraction form
   2,986.56/4,481.89 = 1,038.76/x
3. Step 3: Cross multiply
   2,986.56x = 4,481.89 × 1,038.76
4. Step 4: Simplify right side
   2,986.56x = 4,655,620.47
5. Step 5: Solve for x
   x = 4,655,620.47/2,986.56
6. Step 6: Final answer
   x = 1,558.86