Finding the Fourth Proportional to 2,011.69, 3,018.14 and 902.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,011.69 : 3,018.14 = 902.03 : x
2. Step 2: Convert to fraction form
   2,011.69/3,018.14 = 902.03/x
3. Step 3: Cross multiply
   2,011.69x = 3,018.14 × 902.03
4. Step 4: Simplify right side
   2,011.69x = 2,722,462.62
5. Step 5: Solve for x
   x = 2,722,462.62/2,011.69
6. Step 6: Final answer
   x = 1,353.32