Finding the Fourth Proportional to 1,858.50, 2,564.67 and 1,112.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,858.50 : 2,564.67 = 1,112.43 : x
2. Step 2: Convert to fraction form
   1,858.50/2,564.67 = 1,112.43/x
3. Step 3: Cross multiply
   1,858.50x = 2,564.67 × 1,112.43
4. Step 4: Simplify right side
   1,858.50x = 2,853,015.85
5. Step 5: Solve for x
   x = 2,853,015.85/1,858.50
6. Step 6: Final answer
   x = 1,535.12