Finding the Fourth Proportional to 1,395.76, 1,926.54 and 836.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,395.76 : 1,926.54 = 836.59 : x
2. Step 2: Convert to fraction form
   1,395.76/1,926.54 = 836.59/x
3. Step 3: Cross multiply
   1,395.76x = 1,926.54 × 836.59
4. Step 4: Simplify right side
   1,395.76x = 1,611,724.10
5. Step 5: Solve for x
   x = 1,611,724.10/1,395.76
6. Step 6: Final answer
   x = 1,154.73