Finding the Fourth Proportional to 2,104.72, 3,158.30 and 1,374.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,104.72 : 3,158.30 = 1,374.28 : x
2. Step 2: Convert to fraction form
   2,104.72/3,158.30 = 1,374.28/x
3. Step 3: Cross multiply
   2,104.72x = 3,158.30 × 1,374.28
4. Step 4: Simplify right side
   2,104.72x = 4,340,388.52
5. Step 5: Solve for x
   x = 4,340,388.52/2,104.72
6. Step 6: Final answer
   x = 2,062.22