Finding the Fourth Proportional to 2,495.40, 3,443.63 and 1,376.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,495.40 : 3,443.63 = 1,376.31 : x
2. Step 2: Convert to fraction form
   2,495.40/3,443.63 = 1,376.31/x
3. Step 3: Cross multiply
   2,495.40x = 3,443.63 × 1,376.31
4. Step 4: Simplify right side
   2,495.40x = 4,739,495.52
5. Step 5: Solve for x
   x = 4,739,495.52/2,495.40
6. Step 6: Final answer
   x = 1,899.29