Finding the Fourth Proportional to 2,114.31, 2,918.76 and 1,407.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,114.31 : 2,918.76 = 1,407.33 : x
2. Step 2: Convert to fraction form
   2,114.31/2,918.76 = 1,407.33/x
3. Step 3: Cross multiply
   2,114.31x = 2,918.76 × 1,407.33
4. Step 4: Simplify right side
   2,114.31x = 4,107,658.51
5. Step 5: Solve for x
   x = 4,107,658.51/2,114.31
6. Step 6: Final answer
   x = 1,942.79