Finding the Fourth Proportional to 1,372.64, 1,894.28 and 834.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,372.64 : 1,894.28 = 834.27 : x
2. Step 2: Convert to fraction form
   1,372.64/1,894.28 = 834.27/x
3. Step 3: Cross multiply
   1,372.64x = 1,894.28 × 834.27
4. Step 4: Simplify right side
   1,372.64x = 1,580,336.80
5. Step 5: Solve for x
   x = 1,580,336.80/1,372.64
6. Step 6: Final answer
   x = 1,151.32