Finding the Fourth Proportional to 2,039.89, 2,814.78 and 1,292.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,039.89 : 2,814.78 = 1,292.53 : x
2. Step 2: Convert to fraction form
   2,039.89/2,814.78 = 1,292.53/x
3. Step 3: Cross multiply
   2,039.89x = 2,814.78 × 1,292.53
4. Step 4: Simplify right side
   2,039.89x = 3,638,187.59
5. Step 5: Solve for x
   x = 3,638,187.59/2,039.89
6. Step 6: Final answer
   x = 1,783.52