Finding the Fourth Proportional to 2,477.31, 3,711.14 and 1,378.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,477.31 : 3,711.14 = 1,378.34 : x
2. Step 2: Convert to fraction form
   2,477.31/3,711.14 = 1,378.34/x
3. Step 3: Cross multiply
   2,477.31x = 3,711.14 × 1,378.34
4. Step 4: Simplify right side
   2,477.31x = 5,115,212.71
5. Step 5: Solve for x
   x = 5,115,212.71/2,477.31
6. Step 6: Final answer
   x = 2,064.83