Finding the Fourth Proportional to 1,812.87, 2,501.33 and 1,066.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,812.87 : 2,501.33 = 1,066.86 : x
2. Step 2: Convert to fraction form
   1,812.87/2,501.33 = 1,066.86/x
3. Step 3: Cross multiply
   1,812.87x = 2,501.33 × 1,066.86
4. Step 4: Simplify right side
   1,812.87x = 2,668,563.59
5. Step 5: Solve for x
   x = 2,668,563.59/1,812.87
6. Step 6: Final answer
   x = 1,472.01