Finding the Fourth Proportional to 1,085.13, 1,498.16 and 835.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,085.13 : 1,498.16 = 835.98 : x
2. Step 2: Convert to fraction form
   1,085.13/1,498.16 = 835.98/x
3. Step 3: Cross multiply
   1,085.13x = 1,498.16 × 835.98
4. Step 4: Simplify right side
   1,085.13x = 1,252,431.80
5. Step 5: Solve for x
   x = 1,252,431.80/1,085.13
6. Step 6: Final answer
   x = 1,154.18