Finding the Fourth Proportional to 1,982.71, 2,737.46 and 1,858.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,982.71 : 2,737.46 = 1,858.81 : x
2. Step 2: Convert to fraction form
   1,982.71/2,737.46 = 1,858.81/x
3. Step 3: Cross multiply
   1,982.71x = 2,737.46 × 1,858.81
4. Step 4: Simplify right side
   1,982.71x = 5,088,408.73
5. Step 5: Solve for x
   x = 5,088,408.73/1,982.71
6. Step 6: Final answer
   x = 2,566.39