Finding the Fourth Proportional to 1,333.51, 1,839.26 and 979.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,333.51 : 1,839.26 = 979.31 : x
2. Step 2: Convert to fraction form
   1,333.51/1,839.26 = 979.31/x
3. Step 3: Cross multiply
   1,333.51x = 1,839.26 × 979.31
4. Step 4: Simplify right side
   1,333.51x = 1,801,212.76
5. Step 5: Solve for x
   x = 1,801,212.76/1,333.51
6. Step 6: Final answer
   x = 1,350.73