Finding the Fourth Proportional to 1,018.16, 1,526.05 and 902.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018.16 : 1,526.05 = 902.83 : x
2. Step 2: Convert to fraction form
   1,018.16/1,526.05 = 902.83/x
3. Step 3: Cross multiply
   1,018.16x = 1,526.05 × 902.83
4. Step 4: Simplify right side
   1,018.16x = 1,377,763.72
5. Step 5: Solve for x
   x = 1,377,763.72/1,018.16
6. Step 6: Final answer
   x = 1,353.19