Finding the Fourth Proportional to 1,018.89, 1,526.94 and 402.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018.89 : 1,526.94 = 402.26 : x
2. Step 2: Convert to fraction form
   1,018.89/1,526.94 = 402.26/x
3. Step 3: Cross multiply
   1,018.89x = 1,526.94 × 402.26
4. Step 4: Simplify right side
   1,018.89x = 614,219.25
5. Step 5: Solve for x
   x = 614,219.25/1,018.89
6. Step 6: Final answer
   x = 602.83