Finding the Fourth Proportional to 1,813.50, 2,501.69 and 1,067.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,813.50 : 2,501.69 = 1,067.40 : x
2. Step 2: Convert to fraction form
   1,813.50/2,501.69 = 1,067.40/x
3. Step 3: Cross multiply
   1,813.50x = 2,501.69 × 1,067.40
4. Step 4: Simplify right side
   1,813.50x = 2,670,298.57
5. Step 5: Solve for x
   x = 2,670,298.57/1,813.50
6. Step 6: Final answer
   x = 1,472.46