Finding the Fourth Proportional to 2,439.32, 3,365.42 and 1,376.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,439.32 : 3,365.42 = 1,376.94 : x
2. Step 2: Convert to fraction form
   2,439.32/3,365.42 = 1,376.94/x
3. Step 3: Cross multiply
   2,439.32x = 3,365.42 × 1,376.94
4. Step 4: Simplify right side
   2,439.32x = 4,633,987.15
5. Step 5: Solve for x
   x = 4,633,987.15/2,439.32
6. Step 6: Final answer
   x = 1,899.71