Finding the Fourth Proportional to 1,395.94, 1,926.46 and 836.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,395.94 : 1,926.46 = 836.50 : x
2. Step 2: Convert to fraction form
   1,395.94/1,926.46 = 836.50/x
3. Step 3: Cross multiply
   1,395.94x = 1,926.46 × 836.50
4. Step 4: Simplify right side
   1,395.94x = 1,611,483.79
5. Step 5: Solve for x
   x = 1,611,483.79/1,395.94
6. Step 6: Final answer
   x = 1,154.41