Finding the Fourth Proportional to 2,039.72, 2,817.38 and 1,773.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,039.72 : 2,817.38 = 1,773.63 : x
2. Step 2: Convert to fraction form
   2,039.72/2,817.38 = 1,773.63/x
3. Step 3: Cross multiply
   2,039.72x = 2,817.38 × 1,773.63
4. Step 4: Simplify right side
   2,039.72x = 4,996,994.12
5. Step 5: Solve for x
   x = 4,996,994.12/2,039.72
6. Step 6: Final answer
   x = 2,449.85