Finding the Fourth Proportional to 1,366.34, 1,885.83 and 835.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,366.34 : 1,885.83 = 835.31 : x
2. Step 2: Convert to fraction form
   1,366.34/1,885.83 = 835.31/x
3. Step 3: Cross multiply
   1,366.34x = 1,885.83 × 835.31
4. Step 4: Simplify right side
   1,366.34x = 1,575,252.66
5. Step 5: Solve for x
   x = 1,575,252.66/1,366.34
6. Step 6: Final answer
   x = 1,152.90