Finding the Fourth Proportional to 1,857.15, 2,562.91 and 1,111.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,857.15 : 2,562.91 = 1,111.18 : x
2. Step 2: Convert to fraction form
   1,857.15/2,562.91 = 1,111.18/x
3. Step 3: Cross multiply
   1,857.15x = 2,562.91 × 1,111.18
4. Step 4: Simplify right side
   1,857.15x = 2,847,845.15
5. Step 5: Solve for x
   x = 2,847,845.15/1,857.15
6. Step 6: Final answer
   x = 1,533.45