Finding the Fourth Proportional to 1,364.84, 1,880.92 and 971.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,364.84 : 1,880.92 = 971.18 : x
2. Step 2: Convert to fraction form
   1,364.84/1,880.92 = 971.18/x
3. Step 3: Cross multiply
   1,364.84x = 1,880.92 × 971.18
4. Step 4: Simplify right side
   1,364.84x = 1,826,711.89
5. Step 5: Solve for x
   x = 1,826,711.89/1,364.84
6. Step 6: Final answer
   x = 1,338.41