Finding the Fourth Proportional to 2,451.30, 3,671.55 and 2,127.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,451.30 : 3,671.55 = 2,127.30 : x
2. Step 2: Convert to fraction form
   2,451.30/3,671.55 = 2,127.30/x
3. Step 3: Cross multiply
   2,451.30x = 3,671.55 × 2,127.30
4. Step 4: Simplify right side
   2,451.30x = 7,810,488.32
5. Step 5: Solve for x
   x = 7,810,488.32/2,451.30
6. Step 6: Final answer
   x = 3,186.26