Finding the Fourth Proportional to 2,439.34, 3,366.05 and 1,377.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,439.34 : 3,366.05 = 1,377.01 : x
2. Step 2: Convert to fraction form
   2,439.34/3,366.05 = 1,377.01/x
3. Step 3: Cross multiply
   2,439.34x = 3,366.05 × 1,377.01
4. Step 4: Simplify right side
   2,439.34x = 4,635,084.51
5. Step 5: Solve for x
   x = 4,635,084.51/2,439.34
6. Step 6: Final answer
   x = 1,900.14