Finding the Fourth Proportional to 5,419.02, 8,128.56 and 1,523.46

Step by Step Solution

1. Step 1: Write the proportion equation
   5,419.02 : 8,128.56 = 1,523.46 : x
2. Step 2: Convert to fraction form
   5,419.02/8,128.56 = 1,523.46/x
3. Step 3: Cross multiply
   5,419.02x = 8,128.56 × 1,523.46
4. Step 4: Simplify right side
   5,419.02x = 12,383,536.02
5. Step 5: Solve for x
   x = 12,383,536.02/5,419.02
6. Step 6: Final answer
   x = 2,285.20