Finding the Fourth Proportional to 1,877.94, 2,817.31 and 724.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,877.94 : 2,817.31 = 724.02 : x
2. Step 2: Convert to fraction form
   1,877.94/2,817.31 = 724.02/x
3. Step 3: Cross multiply
   1,877.94x = 2,817.31 × 724.02
4. Step 4: Simplify right side
   1,877.94x = 2,039,788.79
5. Step 5: Solve for x
   x = 2,039,788.79/1,877.94
6. Step 6: Final answer
   x = 1,086.18