Finding the Fourth Proportional to 1,018.89, 1,526.54 and 710.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018.89 : 1,526.54 = 710.15 : x
2. Step 2: Convert to fraction form
   1,018.89/1,526.54 = 710.15/x
3. Step 3: Cross multiply
   1,018.89x = 1,526.54 × 710.15
4. Step 4: Simplify right side
   1,018.89x = 1,084,061.20
5. Step 5: Solve for x
   x = 1,084,061.20/1,018.89
6. Step 6: Final answer
   x = 1,063.96