Finding the Fourth Proportional to 1,018.35, 1,527.72 and 497.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018.35 : 1,527.72 = 497.94 : x
2. Step 2: Convert to fraction form
   1,018.35/1,527.72 = 497.94/x
3. Step 3: Cross multiply
   1,018.35x = 1,527.72 × 497.94
4. Step 4: Simplify right side
   1,018.35x = 760,712.90
5. Step 5: Solve for x
   x = 760,712.90/1,018.35
6. Step 6: Final answer
   x = 747.01