Finding the Fourth Proportional to 2,773.91, 3,822.73 and 1,986.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,773.91 : 3,822.73 = 1,986.59 : x
2. Step 2: Convert to fraction form
   2,773.91/3,822.73 = 1,986.59/x
3. Step 3: Cross multiply
   2,773.91x = 3,822.73 × 1,986.59
4. Step 4: Simplify right side
   2,773.91x = 7,594,173.11
5. Step 5: Solve for x
   x = 7,594,173.11/2,773.91
6. Step 6: Final answer
   x = 2,737.72