Finding the Fourth Proportional to 2,477.39, 3,719.39 and 1,438.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,477.39 : 3,719.39 = 1,438.14 : x
2. Step 2: Convert to fraction form
   2,477.39/3,719.39 = 1,438.14/x
3. Step 3: Cross multiply
   2,477.39x = 3,719.39 × 1,438.14
4. Step 4: Simplify right side
   2,477.39x = 5,349,003.53
5. Step 5: Solve for x
   x = 5,349,003.53/2,477.39
6. Step 6: Final answer
   x = 2,159.13