Finding the Fourth Proportional to 1,396.16, 1,926.37 and 836.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,396.16 : 1,926.37 = 836.42 : x
2. Step 2: Convert to fraction form
   1,396.16/1,926.37 = 836.42/x
3. Step 3: Cross multiply
   1,396.16x = 1,926.37 × 836.42
4. Step 4: Simplify right side
   1,396.16x = 1,611,242.67
5. Step 5: Solve for x
   x = 1,611,242.67/1,396.16
6. Step 6: Final answer
   x = 1,154.06