Finding the Fourth Proportional to 3,103.83, 4,656.69 and 912.58

Step by Step Solution

1. Step 1: Write the proportion equation
   3,103.83 : 4,656.69 = 912.58 : x
2. Step 2: Convert to fraction form
   3,103.83/4,656.69 = 912.58/x
3. Step 3: Cross multiply
   3,103.83x = 4,656.69 × 912.58
4. Step 4: Simplify right side
   3,103.83x = 4,249,590.52
5. Step 5: Solve for x
   x = 4,249,590.52/3,103.83
6. Step 6: Final answer
   x = 1,369.14