Finding the Fourth Proportional to 1,289.63, 1,934.61 and 741.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,289.63 : 1,934.61 = 741.83 : x
2. Step 2: Convert to fraction form
   1,289.63/1,934.61 = 741.83/x
3. Step 3: Cross multiply
   1,289.63x = 1,934.61 × 741.83
4. Step 4: Simplify right side
   1,289.63x = 1,435,139.28
5. Step 5: Solve for x
   x = 1,435,139.28/1,289.63
6. Step 6: Final answer
   x = 1,112.83