Finding the Fourth Proportional to 1,858.86, 2,568.24 and 1,582.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,858.86 : 2,568.24 = 1,582.02 : x
2. Step 2: Convert to fraction form
   1,858.86/2,568.24 = 1,582.02/x
3. Step 3: Cross multiply
   1,858.86x = 2,568.24 × 1,582.02
4. Step 4: Simplify right side
   1,858.86x = 4,063,007.04
5. Step 5: Solve for x
   x = 4,063,007.04/1,858.86
6. Step 6: Final answer
   x = 2,185.75