Finding the Fourth Proportional to 1,858.27, 2,785.56 and 1,036.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,858.27 : 2,785.56 = 1,036.12 : x
2. Step 2: Convert to fraction form
   1,858.27/2,785.56 = 1,036.12/x
3. Step 3: Cross multiply
   1,858.27x = 2,785.56 × 1,036.12
4. Step 4: Simplify right side
   1,858.27x = 2,886,174.43
5. Step 5: Solve for x
   x = 2,886,174.43/1,858.27
6. Step 6: Final answer
   x = 1,553.15