Finding the Fourth Proportional to 1,339.31, 1,847.62 and 834.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,339.31 : 1,847.62 = 834.74 : x
2. Step 2: Convert to fraction form
   1,339.31/1,847.62 = 834.74/x
3. Step 3: Cross multiply
   1,339.31x = 1,847.62 × 834.74
4. Step 4: Simplify right side
   1,339.31x = 1,542,282.32
5. Step 5: Solve for x
   x = 1,542,282.32/1,339.31
6. Step 6: Final answer
   x = 1,151.55