Finding the Fourth Proportional to 1,813.29, 2,501.50 and 1,066.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,813.29 : 2,501.50 = 1,066.78 : x
2. Step 2: Convert to fraction form
   1,813.29/2,501.50 = 1,066.78/x
3. Step 3: Cross multiply
   1,813.29x = 2,501.50 × 1,066.78
4. Step 4: Simplify right side
   1,813.29x = 2,668,532.33
5. Step 5: Solve for x
   x = 2,668,532.33/1,813.29
6. Step 6: Final answer
   x = 1,471.65