Finding the Fourth Proportional to 3,109.38, 4,291.35 and 1,782.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,109.38 : 4,291.35 = 1,782.83 : x
2. Step 2: Convert to fraction form
   3,109.38/4,291.35 = 1,782.83/x
3. Step 3: Cross multiply
   3,109.38x = 4,291.35 × 1,782.83
4. Step 4: Simplify right side
   3,109.38x = 7,650,726.06
5. Step 5: Solve for x
   x = 7,650,726.06/3,109.38
6. Step 6: Final answer
   x = 2,460.53