Finding the Fourth Proportional to 3,118.37, 4,301.89 and 1,858.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3,118.37 : 4,301.89 = 1,858.71 : x
2. Step 2: Convert to fraction form
   3,118.37/4,301.89 = 1,858.71/x
3. Step 3: Cross multiply
   3,118.37x = 4,301.89 × 1,858.71
4. Step 4: Simplify right side
   3,118.37x = 7,995,961.32
5. Step 5: Solve for x
   x = 7,995,961.32/3,118.37
6. Step 6: Final answer
   x = 2,564.15