Finding the Fourth Proportional to 2,018.86, 3,029.30 and 909.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.86 : 3,029.30 = 909.06 : x
2. Step 2: Convert to fraction form
   2,018.86/3,029.30 = 909.06/x
3. Step 3: Cross multiply
   2,018.86x = 3,029.30 × 909.06
4. Step 4: Simplify right side
   2,018.86x = 2,753,802.96
5. Step 5: Solve for x
   x = 2,753,802.96/2,018.86
6. Step 6: Final answer
   x = 1,364.04