Finding the Fourth Proportional to 2,783.16, 4,171.86 and 1,394.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,783.16 : 4,171.86 = 1,394.46 : x
2. Step 2: Convert to fraction form
   2,783.16/4,171.86 = 1,394.46/x
3. Step 3: Cross multiply
   2,783.16x = 4,171.86 × 1,394.46
4. Step 4: Simplify right side
   2,783.16x = 5,817,491.90
5. Step 5: Solve for x
   x = 5,817,491.90/2,783.16
6. Step 6: Final answer
   x = 2,090.25