Finding the Fourth Proportional to 1,343.34, 1,854.81 and 971.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,343.34 : 1,854.81 = 971.16 : x
2. Step 2: Convert to fraction form
   1,343.34/1,854.81 = 971.16/x
3. Step 3: Cross multiply
   1,343.34x = 1,854.81 × 971.16
4. Step 4: Simplify right side
   1,343.34x = 1,801,317.28
5. Step 5: Solve for x
   x = 1,801,317.28/1,343.34
6. Step 6: Final answer
   x = 1,340.92