Finding the Fourth Proportional to 1,407.75, 1,942.76 and 934.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,407.75 : 1,942.76 = 934.83 : x
2. Step 2: Convert to fraction form
   1,407.75/1,942.76 = 934.83/x
3. Step 3: Cross multiply
   1,407.75x = 1,942.76 × 934.83
4. Step 4: Simplify right side
   1,407.75x = 1,816,151.56
5. Step 5: Solve for x
   x = 1,816,151.56/1,407.75
6. Step 6: Final answer
   x = 1,290.11