Finding the Fourth Proportional to 2,019.84, 3,031.04 and 1,155.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.84 : 3,031.04 = 1,155.84 : x
2. Step 2: Convert to fraction form
   2,019.84/3,031.04 = 1,155.84/x
3. Step 3: Cross multiply
   2,019.84x = 3,031.04 × 1,155.84
4. Step 4: Simplify right side
   2,019.84x = 3,503,397.27
5. Step 5: Solve for x
   x = 3,503,397.27/2,019.84
6. Step 6: Final answer
   x = 1,734.49