Finding the Fourth Proportional to 1,877.38, 2,817.72 and 723.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,877.38 : 2,817.72 = 723.94 : x
2. Step 2: Convert to fraction form
   1,877.38/2,817.72 = 723.94/x
3. Step 3: Cross multiply
   1,877.38x = 2,817.72 × 723.94
4. Step 4: Simplify right side
   1,877.38x = 2,039,860.22
5. Step 5: Solve for x
   x = 2,039,860.22/1,877.38
6. Step 6: Final answer
   x = 1,086.55