Finding the Fourth Proportional to 2,030.12, 3,042.82 and 919.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,030.12 : 3,042.82 = 919.32 : x
2. Step 2: Convert to fraction form
   2,030.12/3,042.82 = 919.32/x
3. Step 3: Cross multiply
   2,030.12x = 3,042.82 × 919.32
4. Step 4: Simplify right side
   2,030.12x = 2,797,325.28
5. Step 5: Solve for x
   x = 2,797,325.28/2,030.12
6. Step 6: Final answer
   x = 1,377.91