Finding the Fourth Proportional to 1,025.48, 1,536.81 and 562.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,025.48 : 1,536.81 = 562.70 : x
2. Step 2: Convert to fraction form
   1,025.48/1,536.81 = 562.70/x
3. Step 3: Cross multiply
   1,025.48x = 1,536.81 × 562.70
4. Step 4: Simplify right side
   1,025.48x = 864,764.72
5. Step 5: Solve for x
   x = 864,764.72/1,025.48
6. Step 6: Final answer
   x = 843.28