Finding the Fourth Proportional to 2,548.71, 3,820.91 and 1,377.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,548.71 : 3,820.91 = 1,377.99 : x
2. Step 2: Convert to fraction form
   2,548.71/3,820.91 = 1,377.99/x
3. Step 3: Cross multiply
   2,548.71x = 3,820.91 × 1,377.99
4. Step 4: Simplify right side
   2,548.71x = 5,265,168.88
5. Step 5: Solve for x
   x = 5,265,168.88/2,548.71
6. Step 6: Final answer
   x = 2,065.82