Finding the Fourth Proportional to 2,039.58, 3,056.94 and 1,065.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,039.58 : 3,056.94 = 1,065.15 : x
2. Step 2: Convert to fraction form
   2,039.58/3,056.94 = 1,065.15/x
3. Step 3: Cross multiply
   2,039.58x = 3,056.94 × 1,065.15
4. Step 4: Simplify right side
   2,039.58x = 3,256,099.64
5. Step 5: Solve for x
   x = 3,256,099.64/2,039.58
6. Step 6: Final answer
   x = 1,596.46