Finding the Fourth Proportional to 5,638.56, 8,457.72 and 1,534.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,638.56 : 8,457.72 = 1,534.56 : x
2. Step 2: Convert to fraction form
   5,638.56/8,457.72 = 1,534.56/x
3. Step 3: Cross multiply
   5,638.56x = 8,457.72 × 1,534.56
4. Step 4: Simplify right side
   5,638.56x = 12,978,878.80
5. Step 5: Solve for x
   x = 12,978,878.80/5,638.56
6. Step 6: Final answer
   x = 2,301.81