Finding the Fourth Proportional to 1,018.17, 1,535.76 and 1,018.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018.17 : 1,535.76 = 1,018.17 : x
2. Step 2: Convert to fraction form
   1,018.17/1,535.76 = 1,018.17/x
3. Step 3: Cross multiply
   1,018.17x = 1,535.76 × 1,018.17
4. Step 4: Simplify right side
   1,018.17x = 1,563,664.76
5. Step 5: Solve for x
   x = 1,563,664.76/1,018.17
6. Step 6: Final answer
   x = 1,535.76