Finding the Fourth Proportional to 1,857.39, 2,563.65 and 1,111.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,857.39 : 2,563.65 = 1,111.83 : x
2. Step 2: Convert to fraction form
   1,857.39/2,563.65 = 1,111.83/x
3. Step 3: Cross multiply
   1,857.39x = 2,563.65 × 1,111.83
4. Step 4: Simplify right side
   1,857.39x = 2,850,342.98
5. Step 5: Solve for x
   x = 2,850,342.98/1,857.39
6. Step 6: Final answer
   x = 1,534.60