Finding the Fourth Proportional to 1,364.09, 1,879.89 and 970.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,364.09 : 1,879.89 = 970.43 : x
2. Step 2: Convert to fraction form
   1,364.09/1,879.89 = 970.43/x
3. Step 3: Cross multiply
   1,364.09x = 1,879.89 × 970.43
4. Step 4: Simplify right side
   1,364.09x = 1,824,301.65
5. Step 5: Solve for x
   x = 1,824,301.65/1,364.09
6. Step 6: Final answer
   x = 1,337.38