Finding the Fourth Proportional to 2,663.04, 3,991.98 and 1,018.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,663.04 : 3,991.98 = 1,018.32 : x
2. Step 2: Convert to fraction form
   2,663.04/3,991.98 = 1,018.32/x
3. Step 3: Cross multiply
   2,663.04x = 3,991.98 × 1,018.32
4. Step 4: Simplify right side
   2,663.04x = 4,065,113.07
5. Step 5: Solve for x
   x = 4,065,113.07/2,663.04
6. Step 6: Final answer
   x = 1,526.49