Finding the Fourth Proportional to 2,069.48, 3,105.30 and 1,376.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,069.48 : 3,105.30 = 1,376.48 : x
2. Step 2: Convert to fraction form
   2,069.48/3,105.30 = 1,376.48/x
3. Step 3: Cross multiply
   2,069.48x = 3,105.30 × 1,376.48
4. Step 4: Simplify right side
   2,069.48x = 4,274,383.34
5. Step 5: Solve for x
   x = 4,274,383.34/2,069.48
6. Step 6: Final answer
   x = 2,065.44