Finding the Fourth Proportional to 1,407.33, 2,111.48 and 940.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,407.33 : 2,111.48 = 940.67 : x
2. Step 2: Convert to fraction form
   1,407.33/2,111.48 = 940.67/x
3. Step 3: Cross multiply
   1,407.33x = 2,111.48 × 940.67
4. Step 4: Simplify right side
   1,407.33x = 1,986,198.20
5. Step 5: Solve for x
   x = 1,986,198.20/1,407.33
6. Step 6: Final answer
   x = 1,411.33