Finding the Fourth Proportional to 1,238.15, 1,857.83 and 875.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,238.15 : 1,857.83 = 875.27 : x
2. Step 2: Convert to fraction form
   1,238.15/1,857.83 = 875.27/x
3. Step 3: Cross multiply
   1,238.15x = 1,857.83 × 875.27
4. Step 4: Simplify right side
   1,238.15x = 1,626,102.86
5. Step 5: Solve for x
   x = 1,626,102.86/1,238.15
6. Step 6: Final answer
   x = 1,313.33