Finding the Fourth Proportional to 1,372.91, 1,894.28 and 834.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,372.91 : 1,894.28 = 834.54 : x
2. Step 2: Convert to fraction form
   1,372.91/1,894.28 = 834.54/x
3. Step 3: Cross multiply
   1,372.91x = 1,894.28 × 834.54
4. Step 4: Simplify right side
   1,372.91x = 1,580,841.15
5. Step 5: Solve for x
   x = 1,580,841.15/1,372.91
6. Step 6: Final answer
   x = 1,151.46