Finding the Fourth Proportional to 2,031.78, 3,045.24 and 1,107.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,031.78 : 3,045.24 = 1,107.30 : x
2. Step 2: Convert to fraction form
   2,031.78/3,045.24 = 1,107.30/x
3. Step 3: Cross multiply
   2,031.78x = 3,045.24 × 1,107.30
4. Step 4: Simplify right side
   2,031.78x = 3,371,994.25
5. Step 5: Solve for x
   x = 3,371,994.25/2,031.78
6. Step 6: Final answer
   x = 1,659.63