Finding the Fourth Proportional to 3,714.94, 5,575.49 and 1,866.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,714.94 : 5,575.49 = 1,866.59 : x
2. Step 2: Convert to fraction form
   3,714.94/5,575.49 = 1,866.59/x
3. Step 3: Cross multiply
   3,714.94x = 5,575.49 × 1,866.59
4. Step 4: Simplify right side
   3,714.94x = 10,407,144.58
5. Step 5: Solve for x
   x = 10,407,144.58/3,714.94
6. Step 6: Final answer
   x = 2,801.43