Finding the Fourth Proportional to 1,395.27, 1,925.41 and 836.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,395.27 : 1,925.41 = 836.05 : x
2. Step 2: Convert to fraction form
   1,395.27/1,925.41 = 836.05/x
3. Step 3: Cross multiply
   1,395.27x = 1,925.41 × 836.05
4. Step 4: Simplify right side
   1,395.27x = 1,609,737.30
5. Step 5: Solve for x
   x = 1,609,737.30/1,395.27
6. Step 6: Final answer
   x = 1,153.71