Finding the Fourth Proportional to 1,360.73, 1,877.15 and 836.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,360.73 : 1,877.15 = 836.57 : x
2. Step 2: Convert to fraction form
   1,360.73/1,877.15 = 836.57/x
3. Step 3: Cross multiply
   1,360.73x = 1,877.15 × 836.57
4. Step 4: Simplify right side
   1,360.73x = 1,570,353.81
5. Step 5: Solve for x
   x = 1,570,353.81/1,360.73
6. Step 6: Final answer
   x = 1,154.06