Finding the Fourth Proportional to 2,758.60, 4,140.84 and 1,116.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,758.60 : 4,140.84 = 1,116.22 : x
2. Step 2: Convert to fraction form
   2,758.60/4,140.84 = 1,116.22/x
3. Step 3: Cross multiply
   2,758.60x = 4,140.84 × 1,116.22
4. Step 4: Simplify right side
   2,758.60x = 4,622,067.72
5. Step 5: Solve for x
   x = 4,622,067.72/2,758.60
6. Step 6: Final answer
   x = 1,675.52