Finding the Fourth Proportional to 1,407.33, 1,942.24 and 934.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,407.33 : 1,942.24 = 934.39 : x
2. Step 2: Convert to fraction form
   1,407.33/1,942.24 = 934.39/x
3. Step 3: Cross multiply
   1,407.33x = 1,942.24 × 934.39
4. Step 4: Simplify right side
   1,407.33x = 1,814,802.44
5. Step 5: Solve for x
   x = 1,814,802.44/1,407.33
6. Step 6: Final answer
   x = 1,289.54