Finding the Fourth Proportional to 1,396.02, 1,926.38 and 836.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,396.02 : 1,926.38 = 836.39 : x
2. Step 2: Convert to fraction form
   1,396.02/1,926.38 = 836.39/x
3. Step 3: Cross multiply
   1,396.02x = 1,926.38 × 836.39
4. Step 4: Simplify right side
   1,396.02x = 1,611,191.15
5. Step 5: Solve for x
   x = 1,611,191.15/1,396.02
6. Step 6: Final answer
   x = 1,154.13