Finding the Fourth Proportional to 1,812.79, 2,500.77 and 1,066.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,812.79 : 2,500.77 = 1,066.71 : x
2. Step 2: Convert to fraction form
   1,812.79/2,500.77 = 1,066.71/x
3. Step 3: Cross multiply
   1,812.79x = 2,500.77 × 1,066.71
4. Step 4: Simplify right side
   1,812.79x = 2,667,596.37
5. Step 5: Solve for x
   x = 2,667,596.37/1,812.79
6. Step 6: Final answer
   x = 1,471.54