Finding the Fourth Proportional to 1,812.34, 2,500.20 and 1,066.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,812.34 : 2,500.20 = 1,066.36 : x
2. Step 2: Convert to fraction form
   1,812.34/2,500.20 = 1,066.36/x
3. Step 3: Cross multiply
   1,812.34x = 2,500.20 × 1,066.36
4. Step 4: Simplify right side
   1,812.34x = 2,666,113.27
5. Step 5: Solve for x
   x = 2,666,113.27/1,812.34
6. Step 6: Final answer
   x = 1,471.09